diff --git a/code/__defines/radio.dm b/code/__defines/radio.dm
index 2fd45c22ed8..f3f63f7c8da 100644
--- a/code/__defines/radio.dm
+++ b/code/__defines/radio.dm
@@ -1,16 +1,16 @@
-var/const/RADIO_LOW_FREQ	= 1200
-var/const/PUBLIC_LOW_FREQ	= 1441
-var/const/PUBLIC_HIGH_FREQ	= 1489
-var/const/RADIO_HIGH_FREQ	= 1600
+#define RADIO_LOW_FREQ 1200
+#define PUBLIC_LOW_FREQ 1441
+#define PUBLIC_HIGH_FREQ 1489
+#define RADIO_HIGH_FREQ 1600
 
-var/const/BOT_FREQ	= 1447
-var/const/COMM_FREQ = 1353
-var/const/ERT_FREQ	= 1345
-var/const/AI_FREQ	= 1343
-var/const/DTH_FREQ	= 1341
-var/const/SYND_FREQ = 1213
-var/const/RAID_FREQ	= 1277
-var/const/ENT_FREQ	= 1461 //entertainment frequency. This is not a diona exclusive frequency.
+#define BOT_FREQ 1447
+#define COMM_FREQ 1353
+#define ERT_FREQ 1345
+#define AI_FREQ 1343
+#define DTH_FREQ 1341
+#define SYND_FREQ 1213
+#define RAID_FREQ 1277
+#define ENT_FREQ 1461 //entertainment frequency. This is not a diona exclusive frequency.
 
 // department channels
 var/const/PUB_FREQ = 1459
@@ -22,8 +22,8 @@ var/const/SRV_FREQ = 1349
 var/const/SUP_FREQ = 1347
 
 // internal department channels
-var/const/MED_I_FREQ = 1485
-var/const/SEC_I_FREQ = 1475
+#define MED_I_FREQ 1485
+#define SEC_I_FREQ 1475
 
 var/list/radiochannels = list(
 	"Common"		= PUB_FREQ,
@@ -40,18 +40,58 @@ var/list/radiochannels = list(
 	"Service" 		= SRV_FREQ,
 	"AI Private"	= AI_FREQ,
 	"Entertainment" = ENT_FREQ,
-	"Medical(I)"	= MED_I_FREQ,
-	"Security(I)"	= SEC_I_FREQ
+	"Medical (I)"	= MED_I_FREQ,
+	"Security (I)"	= SEC_I_FREQ
 )
 
+// The assoc variants are separate lists because they need the keys to be strings, but some code expects numbers.
+
 // central command channels, i.e deathsquid & response teams
-var/list/CENT_FREQS = list(ERT_FREQ, DTH_FREQ)
+var/list/CENT_FREQS = list(
+	ERT_FREQ, 
+	DTH_FREQ
+)
+
+var/list/CENT_FREQS_ASSOC = list(
+	"[ERT_FREQ]" = TRUE,
+	"[DTH_FREQ]" = TRUE
+)
 
 // Antag channels, i.e. Syndicate
-var/list/ANTAG_FREQS = list(SYND_FREQ, RAID_FREQ)
+var/list/ANTAG_FREQS = list(
+	SYND_FREQ, 
+	RAID_FREQ
+)
+
+var/list/ANTAG_FREQS_ASSOC = list(
+	"[SYND_FREQ]" = TRUE,
+	"[RAID_FREQ]" = TRUE
+)
 
 //Department channels, arranged lexically
-var/list/DEPT_FREQS = list(AI_FREQ, COMM_FREQ, ENG_FREQ, MED_FREQ, SEC_FREQ, SCI_FREQ, SRV_FREQ, SUP_FREQ, ENT_FREQ)
+var/list/DEPT_FREQS = list(
+	AI_FREQ,
+	COMM_FREQ,
+	ENG_FREQ,
+	MED_FREQ,
+	SEC_FREQ,
+	SCI_FREQ,
+	SRV_FREQ,
+	SUP_FREQ,
+	ENT_FREQ
+)
+
+var/list/DEPT_FREQS_ASSOC = list(
+	"[AI_FREQ]" = TRUE,
+	"[COMM_FREQ]" = TRUE,
+	"[ENG_FREQ]" = TRUE,
+	"[MED_FREQ]" = TRUE,
+	"[SEC_FREQ]" = TRUE,
+	"[SCI_FREQ]" = TRUE,
+	"[SRV_FREQ]" = TRUE,
+	"[SUP_FREQ]" = TRUE,
+	"[ENT_FREQ]" = TRUE
+)
 
 #define TRANSMISSION_WIRE	0
 #define TRANSMISSION_RADIO	1
@@ -62,15 +102,15 @@ var/list/DEPT_FREQS = list(AI_FREQ, COMM_FREQ, ENG_FREQ, MED_FREQ, SEC_FREQ, SCI
 //This is done for performance, so we don't send signals to lots of machines unnecessarily.
 
 //This filter is special because devices belonging to default also recieve signals sent to any other filter.
-var/const/RADIO_DEFAULT = "radio_default"
+#define RADIO_DEFAULT "radio_default"
 
-var/const/RADIO_TO_AIRALARM = "radio_airalarm" //air alarms
-var/const/RADIO_FROM_AIRALARM = "radio_airalarm_rcvr" //devices interested in recieving signals from air alarms
-var/const/RADIO_CHAT = "radio_telecoms"
-var/const/RADIO_ATMOSIA = "radio_atmos"
-var/const/RADIO_NAVBEACONS = "radio_navbeacon"
-var/const/RADIO_AIRLOCK = "radio_airlock"
-var/const/RADIO_SECBOT = "radio_secbot"
-var/const/RADIO_MULEBOT = "radio_mulebot"
-var/const/RADIO_MAGNETS = "radio_magnet"
-var/const/RADIO_ARRIVALS = "radio_arrvl"
+#define RADIO_TO_AIRALARM "radio_airalarm" //air alarms
+#define RADIO_FROM_AIRALARM "radio_airalarm_rcvr" //devices interested in recieving signals from air alarms
+#define RADIO_CHAT "radio_telecoms"
+#define RADIO_ATMOSIA "radio_atmos"
+#define RADIO_NAVBEACONS "radio_navbeacon"
+#define RADIO_AIRLOCK "radio_airlock"
+#define RADIO_SECBOT "radio_secbot"
+#define RADIO_MULEBOT "radio_mulebot"
+#define RADIO_MAGNETS "radio_magnet"
+#define RADIO_ARRIVALS "radio_arrvl"
diff --git a/code/controllers/subsystems/explosives.dm b/code/controllers/subsystems/explosives.dm
index 1e70e0ee0ea..67e3b56abaf 100644
--- a/code/controllers/subsystems/explosives.dm
+++ b/code/controllers/subsystems/explosives.dm
@@ -82,9 +82,9 @@ var/datum/controller/subsystem/explosives/SSexplosives
 	// Handles recursive propagation of explosions.
 	if(devastation_range > 2 || heavy_impact_range > 2)
 		if(HasAbove(epicenter.z) && z_transfer & UP)
-			explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, UP)
+			global.explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, UP)
 		if(HasBelow(epicenter.z) && z_transfer & DOWN)
-			explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, DOWN)
+			global.explosion(GetAbove(epicenter), max(0, devastation_range - 2), max(0, heavy_impact_range - 2), max(0, light_impact_range - 2), max(0, flash_range - 2), 0, DOWN)
 
 	var/max_range = max(devastation_range, heavy_impact_range, light_impact_range, flash_range)
 
diff --git a/code/controllers/subsystems/garbage-debug.dm b/code/controllers/subsystems/garbage-debug.dm
index 2b8471e5780..7c0f2f521e5 100644
--- a/code/controllers/subsystems/garbage-debug.dm
+++ b/code/controllers/subsystems/garbage-debug.dm
@@ -366,9 +366,6 @@
 	SearchVar(panic_targets_data_loss)
 	SearchVar(Failsafe)
 	SearchVar(Master)
-	SearchVar(MC_restart_clear)
-	SearchVar(MC_restart_timeout)
-	SearchVar(MC_restart_count)
 	SearchVar(CURRENT_TICKLIMIT)
 	SearchVar(SSalarm)
 	SearchVar(SSchemistry)
@@ -658,8 +655,6 @@
 	SearchVar(uristrune_cache)
 	SearchVar(slot_flags_enumeration)
 	SearchVar(BUMP_TELEPORTERS)
-	SearchVar(splatter_cache)
-	SearchVar(fluidtrack_cache)
 	SearchVar(active_radio_jammers)
 	SearchVar(default_uplink_selection)
 	SearchVar(chatrooms)
@@ -680,9 +675,7 @@
 	SearchVar(stool_cache)
 	SearchVar(enterloopsanity)
 	SearchVar(flooring_types)
-	SearchVar(floor_decals)
 	SearchVar(random_junk)
-	SearchVar(flooring_cache)
 	SearchVar(js_byjax)
 	SearchVar(js_dropdowns)
 	SearchVar(BSACooldown)
@@ -705,7 +698,6 @@
 	SearchVar(admin_verbs_mod)
 	SearchVar(admin_verbs_dev)
 	SearchVar(admin_verbs_cciaa)
-	SearchVar(jobban_runonce)
 	SearchVar(jobban_keylist)
 	SearchVar(admin_datums)
 	SearchVar(CMinutes)
@@ -771,7 +763,6 @@
 	SearchVar(admin_verbs_lighting)
 	SearchVar(liquid_delay)
 	SearchVar(puddles)
-	SearchVar(maploader)
 	SearchVar(_preloader)
 	SearchVar(swapmaps_iconcache)
 	SearchVar(SWAPMAPS_SAV)
@@ -807,9 +798,6 @@
 	SearchVar(diona_banned_languages)
 	SearchVar(alcohol_clumsy)
 	SearchVar(sparring_attack_cache)
-	SearchVar(human_icon_cache)
-	SearchVar(tail_icon_cache)
-	SearchVar(light_overlay_cache)
 	SearchVar(damage_icon_parts)
 	SearchVar(MAXIMUM_MEME_POINTS)
 	SearchVar(host_brain)
@@ -822,7 +810,6 @@
 	SearchVar(pai_emotions)
 	SearchVar(robot_custom_icons)
 	SearchVar(robot_modules)
-	SearchVar(mob_hat_cache)
 	SearchVar(protected_objects)
 	SearchVar(SKILL_NONE)
 	SearchVar(SKILL_BASIC)
@@ -849,7 +836,6 @@
 	SearchVar(BLOOD_VOLUME_BAD)
 	SearchVar(BLOOD_VOLUME_SURVIVE)
 	SearchVar(organ_cache)
-	SearchVar(limb_icon_cache)
 	SearchVar(all_robolimbs)
 	SearchVar(chargen_robolimbs)
 	SearchVar(basic_robolimb)
diff --git a/code/controllers/subsystems/radio.dm b/code/controllers/subsystems/radio.dm
index d995c4bb68c..ba8fdcf335d 100644
--- a/code/controllers/subsystems/radio.dm
+++ b/code/controllers/subsystems/radio.dm
@@ -155,34 +155,36 @@ var/datum/controller/subsystem/radio/SSradio
 	return null
 
 /proc/frequency_span_class(var/frequency)
+	. = "radio"
+	var/fstr = "[frequency]"
 	// Antags!
-	if (frequency in ANTAG_FREQS)
+	if (ANTAG_FREQS_ASSOC[fstr])
 		return "syndradio"
-	// centcomm channels (deathsquid and ert)
-	if(frequency in CENT_FREQS)
-		return "centradio"
-	// command channel
-	if(frequency == COMM_FREQ)
-		return "comradio"
-	// AI private channel
-	if(frequency == AI_FREQ)
-		return "airadio"
-	// department radio formatting (poorly optimized, ugh)
-	if(frequency == SEC_FREQ)
-		return "secradio"
-	if (frequency == ENG_FREQ)
-		return "engradio"
-	if(frequency == SCI_FREQ)
-		return "sciradio"
-	if(frequency == MED_FREQ)
-		return "medradio"
-	if(frequency == SUP_FREQ) // cargo
-		return "supradio"
-	if(frequency == SRV_FREQ) // service
-		return "srvradio"
-	if(frequency == ENT_FREQ) //entertainment
-		return "entradio"
-	if(frequency in DEPT_FREQS)
-		return "deptradio"
 
-	return "radio"
+	// centcomm channels (deathsquid and ert)
+	if(CENT_FREQS_ASSOC[fstr])
+		return "centradio"
+
+	// department radio formatting
+	switch (frequency)
+		if (COMM_FREQ)	// command
+			. = "comradio"
+		if (AI_FREQ)	// AI Private
+			. = "airadio"
+		if (SEC_FREQ,SEC_I_FREQ)
+			. = "secradio"
+		if (ENG_FREQ)
+			. = "engradio"
+		if (SCI_FREQ)
+			. = "sciradio"
+		if (MED_FREQ,MED_I_FREQ)
+			. = "medradio"
+		if (SUP_FREQ)	// cargo
+			. = "supradio"
+		if (SRV_FREQ)	// service
+			. = "srvradio"
+		if (ENT_FREQ) //entertainment
+			. = "entradio"
+		else
+			if(DEPT_FREQS_ASSOC[fstr])
+				. = "deptradio"
diff --git a/code/game/objects/items/devices/PDA/PDA.dm b/code/game/objects/items/devices/PDA/PDA.dm
index 5a3d567f44d..7bef4ecce71 100644
--- a/code/game/objects/items/devices/PDA/PDA.dm
+++ b/code/game/objects/items/devices/PDA/PDA.dm
@@ -1415,6 +1415,7 @@ var/global/list/obj/item/device/pda/PDAs = list()
 	PDAs -= src
 	if (src.id && prob(90)) //IDs are kept in 90% of the cases
 		src.id.loc = get_turf(src.loc)
+	QDEL_NULL(pen)
 	return ..()
 
 /obj/item/device/pda/clown/Crossed(AM as mob|obj) //Clown PDA is slippery.
diff --git a/code/game/objects/items/devices/PDA/cart.dm b/code/game/objects/items/devices/PDA/cart.dm
index f95d341577d..32595ebf2bc 100644
--- a/code/game/objects/items/devices/PDA/cart.dm
+++ b/code/game/objects/items/devices/PDA/cart.dm
@@ -33,6 +33,10 @@
 	var/message2
 	var/list/stored_data = list()
 
+/obj/item/weapon/cartridge/Destroy()
+	QDEL_NULL(radio)
+	return ..()
+
 /obj/item/weapon/cartridge/engineering
 	name = "\improper Power-ON cartridge"
 	icon_state = "cart-e"
@@ -101,7 +105,6 @@
 /obj/item/weapon/cartridge/signal
 	name = "generic signaler cartridge"
 	desc = "A data cartridge with an integrated radio signaler module."
-	var/qdeled = 0
 
 /obj/item/weapon/cartridge/signal/science
 	name = "\improper Signal Ace 2 cartridge"
@@ -114,10 +117,6 @@
     . = ..()
     radio = new /obj/item/radio/integrated/signal(src)
 
-/obj/item/weapon/cartridge/signal/Destroy()
-	qdel(radio)
-	return ..()
-
 /obj/item/weapon/cartridge/quartermaster
 	name = "\improper Space Parts & Space Vendors cartridge"
 	desc = "Perfect for the Quartermaster on the go!"
diff --git a/code/game/objects/items/devices/PDA/radio.dm b/code/game/objects/items/devices/PDA/radio.dm
index 2d521db062a..67b4138cf4c 100644
--- a/code/game/objects/items/devices/PDA/radio.dm
+++ b/code/game/objects/items/devices/PDA/radio.dm
@@ -8,32 +8,36 @@
 	var/on = 0 //Are we currently active??
 	var/menu_message = ""
 
-	New()
-		..()
-		if (istype(loc.loc, /obj/item/device/pda))
-			hostpda = loc.loc
+/obj/item/radio/integrated/Initialize()
+	. = ..()
+	if (istype(loc.loc, /obj/item/device/pda))
+		hostpda = loc.loc
 
-	proc/post_signal(var/freq, var/key, var/value, var/key2, var/value2, var/key3, var/value3, s_filter)
+/obj/item/radio/integrated/Destroy()
+	hostpda = null
+	return ..()
 
-		//world << "Post: [freq]: [key]=[value], [key2]=[value2]"
-		var/datum/radio_frequency/frequency = SSradio.return_frequency(freq)
+/obj/item/radio/integrated/proc/post_signal(var/freq, var/key, var/value, var/key2, var/value2, var/key3, var/value3, s_filter)
 
-		if(!frequency) return
+	//world << "Post: [freq]: [key]=[value], [key2]=[value2]"
+	var/datum/radio_frequency/frequency = SSradio.return_frequency(freq)
 
-		var/datum/signal/signal = new()
-		signal.source = src
-		signal.transmission_method = 1
-		signal.data[key] = value
-		if(key2)
-			signal.data[key2] = value2
-		if(key3)
-			signal.data[key3] = value3
+	if(!frequency) return
 
-		frequency.post_signal(src, signal, filter = s_filter)
+	var/datum/signal/signal = new()
+	signal.source = src
+	signal.transmission_method = 1
+	signal.data[key] = value
+	if(key2)
+		signal.data[key2] = value2
+	if(key3)
+		signal.data[key3] = value3
 
-		return
+	frequency.post_signal(src, signal, filter = s_filter)
 
-	proc/generate_menu()
+	return
+
+/obj/item/radio/integrated/proc/generate_menu()
 
 /obj/item/radio/integrated/beepsky
 	var/list/botlist = null		// list of bots
@@ -43,66 +47,63 @@
 	var/control_freq = BOT_FREQ
 
 	// create a new QM cartridge, and register to receive bot control & beacon message
-	New()
-		..()
-		spawn(5)
-			if(SSradio)
-				SSradio.add_object(src, control_freq, filter = RADIO_SECBOT)
+/obj/item/radio/integrated/beepsky/Initialize()
+	. = ..()
+	SSradio.add_object(src, control_freq, filter = RADIO_SECBOT)
 
 	// receive radio signals
 	// can detect bot status signals
 	// create/populate list as they are recvd
 
-	receive_signal(datum/signal/signal)
+/obj/item/radio/integrated/beepsky/receive_signal(datum/signal/signal)
 //		var/obj/item/device/pda/P = src.loc
 
-		/*
-		world << "recvd:[P] : [signal.source]"
-		for(var/d in signal.data)
-			world << "- [d] = [signal.data[d]]"
-		*/
-		if (signal.data["type"] == "secbot")
-			if(!botlist)
-				botlist = new()
+	/*
+	world << "recvd:[P] : [signal.source]"
+	for(var/d in signal.data)
+		world << "- [d] = [signal.data[d]]"
+	*/
+	if (signal.data["type"] == "secbot")
+		if(!botlist)
+			botlist = new()
 
-			if(!(signal.source in botlist))
-				botlist += signal.source
+		if(!(signal.source in botlist))
+			botlist += signal.source
 
-			if(active == signal.source)
-				var/list/b = signal.data
-				botstatus = b.Copy()
+		if(active == signal.source)
+			var/list/b = signal.data
+			botstatus = b.Copy()
 
 //		if (istype(P)) P.updateSelfDialog()
 
-	Topic(href, href_list)
-		..()
-		var/obj/item/device/pda/PDA = src.hostpda
+/obj/item/radio/integrated/beepsky/Topic(href, href_list)
+	..()
+	var/obj/item/device/pda/PDA = src.hostpda
 
-		switch(href_list["op"])
+	switch(href_list["op"])
 
-			if("control")
-				active = locate(href_list["bot"])
-				post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
+		if("control")
+			active = locate(href_list["bot"])
+			post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
 
-			if("scanbots")		// find all bots
-				botlist = null
-				post_signal(control_freq, "command", "bot_status", s_filter = RADIO_SECBOT)
+		if("scanbots")		// find all bots
+			botlist = null
+			post_signal(control_freq, "command", "bot_status", s_filter = RADIO_SECBOT)
 
-			if("botlist")
-				active = null
+		if("botlist")
+			active = null
 
-			if("stop", "go")
-				post_signal(control_freq, "command", href_list["op"], "active", active, s_filter = RADIO_SECBOT)
-				post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
+		if("stop", "go")
+			post_signal(control_freq, "command", href_list["op"], "active", active, s_filter = RADIO_SECBOT)
+			post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
 
-			if("summon")
-				post_signal(control_freq, "command", "summon", "active", active, "target", get_turf(PDA) , s_filter = RADIO_SECBOT)
-				post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
+		if("summon")
+			post_signal(control_freq, "command", "summon", "active", active, "target", get_turf(PDA) , s_filter = RADIO_SECBOT)
+			post_signal(control_freq, "command", "bot_status", "active", active, s_filter = RADIO_SECBOT)
 
 
 /obj/item/radio/integrated/beepsky/Destroy()
-	if(SSradio)
-		SSradio.remove_object(src, control_freq)
+	SSradio.remove_object(src, control_freq)
 	return ..()
 
 /obj/item/radio/integrated/mule
@@ -115,94 +116,99 @@
 	var/control_freq = BOT_FREQ
 
 	// create a new QM cartridge, and register to receive bot control & beacon message
-	New()
-		..()
-		spawn(5)
-			if(SSradio)
-				SSradio.add_object(src, control_freq, filter = RADIO_MULEBOT)
-				SSradio.add_object(src, beacon_freq, filter = RADIO_NAVBEACONS)
-				spawn(10)
-					post_signal(beacon_freq, "findbeacon", "delivery", s_filter = RADIO_NAVBEACONS)
+/obj/item/radio/integrated/mule/Initialize()
+	..()
+	SSradio.add_object(src, control_freq, filter = RADIO_MULEBOT)
+	SSradio.add_object(src, beacon_freq, filter = RADIO_NAVBEACONS)
+	return INITIALIZE_HINT_LATELOAD
+
+/obj/item/radio/integrated/mule/LateInitialize()
+	post_signal(beacon_freq, "findbeacon", "delivery", s_filter = RADIO_NAVBEACONS)
+
+/obj/item/radio/integrated/mule/Destroy()
+	SSradio.remove_object(src, control_freq)
+	SSradio.remove_object(src, beacon_freq)
+	return ..()
 
 	// receive radio signals
 	// can detect bot status signals
 	// and beacon locations
 	// create/populate lists as they are recvd
 
-	receive_signal(datum/signal/signal)
+/obj/item/radio/integrated/mule/receive_signal(datum/signal/signal)
 //		var/obj/item/device/pda/P = src.loc
 
-		/*
-		world << "recvd:[P] : [signal.source]"
-		for(var/d in signal.data)
-			world << "- [d] = [signal.data[d]]"
-		*/
-		if(signal.data["type"] == "mulebot")
-			if(!botlist)
-				botlist = new()
+	/*
+	world << "recvd:[P] : [signal.source]"
+	for(var/d in signal.data)
+		world << "- [d] = [signal.data[d]]"
+	*/
+	if(signal.data["type"] == "mulebot")
+		if(!botlist)
+			botlist = new()
 
-			if(!(signal.source in botlist))
-				botlist += signal.source
+		if(!(signal.source in botlist))
+			botlist += signal.source
 
-			if(active == signal.source)
-				var/list/b = signal.data
-				botstatus = b.Copy()
+		if(active == signal.source)
+			var/list/b = signal.data
+			botstatus = b.Copy()
 
-		else if(signal.data["beacon"])
-			if(!beacons)
-				beacons = new()
+	else if(signal.data["beacon"])
+		if(!beacons)
+			beacons = new()
 
-			beacons[signal.data["beacon"] ] = signal.source
+		beacons[signal.data["beacon"] ] = signal.source
 
 
 //		if(istype(P)) P.updateSelfDialog()
 
-	Topic(href, href_list)
-		..()
-		var/cmd = "command"
-		if(active) cmd = "command [active.suffix]"
+/obj/item/radio/integrated/mule/Topic(href, href_list)
+	..()
+	var/cmd = "command"
+	if(active) cmd = "command [active.suffix]"
 
-		switch(href_list["op"])
+	switch(href_list["op"])
 
-			if("control")
-				active = locate(href_list["bot"])
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("control")
+			active = locate(href_list["bot"])
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
 
-			if("scanbots")		// find all bots
-				botlist = null
-				post_signal(control_freq, "command", "bot_status", s_filter = RADIO_MULEBOT)
+		if("scanbots")		// find all bots
+			botlist = null
+			post_signal(control_freq, "command", "bot_status", s_filter = RADIO_MULEBOT)
 
-			if("botlist")
-				active = null
+		if("botlist")
+			active = null
 
 
-			if("unload")
-				post_signal(control_freq, cmd, "unload", s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
-			if("setdest")
-				if(beacons)
-					var/dest = input("Select Bot Destination", "Mulebot [active.suffix] Interlink", active.destination) as null|anything in beacons
-					if(dest)
-						post_signal(control_freq, cmd, "target", "destination", dest, s_filter = RADIO_MULEBOT)
-						post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("unload")
+			post_signal(control_freq, cmd, "unload", s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("setdest")
+			if(beacons)
+				var/dest = input("Select Bot Destination", "Mulebot [active.suffix] Interlink", active.destination) as null|anything in beacons
+				if(dest)
+					post_signal(control_freq, cmd, "target", "destination", dest, s_filter = RADIO_MULEBOT)
+					post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
 
-			if("retoff")
-				post_signal(control_freq, cmd, "autoret", "value", 0, s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
-			if("reton")
-				post_signal(control_freq, cmd, "autoret", "value", 1, s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("retoff")
+			post_signal(control_freq, cmd, "autoret", "value", 0, s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("reton")
+			post_signal(control_freq, cmd, "autoret", "value", 1, s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
 
-			if("pickoff")
-				post_signal(control_freq, cmd, "autopick", "value", 0, s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
-			if("pickon")
-				post_signal(control_freq, cmd, "autopick", "value", 1, s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("pickoff")
+			post_signal(control_freq, cmd, "autopick", "value", 0, s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("pickon")
+			post_signal(control_freq, cmd, "autopick", "value", 1, s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
 
-			if("stop", "go", "home")
-				post_signal(control_freq, cmd, href_list["op"], s_filter = RADIO_MULEBOT)
-				post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
+		if("stop", "go", "home")
+			post_signal(control_freq, cmd, href_list["op"], s_filter = RADIO_MULEBOT)
+			post_signal(control_freq, cmd, "bot_status", s_filter = RADIO_MULEBOT)
 
 
 
@@ -217,41 +223,37 @@
 	var/last_transmission
 	var/datum/radio_frequency/radio_connection
 
-	Initialize()
-		. = ..()
-		if(!SSradio)
-			return
-
-		if (src.frequency < PUBLIC_LOW_FREQ || src.frequency > PUBLIC_HIGH_FREQ)
-			src.frequency = sanitize_frequency(src.frequency)
-
-		set_frequency(frequency)
-
-	proc/set_frequency(new_frequency)
-		SSradio.remove_object(src, frequency)
-		frequency = new_frequency
-		radio_connection = SSradio.add_object(src, frequency)
-
-	proc/send_signal(message="ACTIVATE")
-
-		if(last_transmission && world.time < (last_transmission + 5))
-			return
-		last_transmission = world.time
-
-		var/time = time2text(world.realtime,"hh:mm:ss")
-		var/turf/T = get_turf(src)
-		lastsignalers.Add("[time] <B>:</B> [usr.key] used [src] @ location ([T.x],[T.y],[T.z]) <B>:</B> [format_frequency(frequency)]/[code]")
-
-		var/datum/signal/signal = new
-		signal.source = src
-		signal.encryption = code
-		signal.data["message"] = message
-
-		radio_connection.post_signal(src, signal)
-
+/obj/item/radio/integrated/signal/Initialize()
+	. = ..()
+	if(!SSradio)
 		return
 
+	if (src.frequency < PUBLIC_LOW_FREQ || src.frequency > PUBLIC_HIGH_FREQ)
+		src.frequency = sanitize_frequency(src.frequency)
+
+	set_frequency(frequency)
+
+/obj/item/radio/integrated/signal/proc/set_frequency(new_frequency)
+	SSradio.remove_object(src, frequency)
+	frequency = new_frequency
+	radio_connection = SSradio.add_object(src, frequency)
+
+/obj/item/radio/integrated/signal/proc/send_signal(message="ACTIVATE")
+	if(last_transmission && world.time < (last_transmission + 5))
+		return
+	last_transmission = world.time
+
+	var/time = time2text(world.realtime,"hh:mm:ss")
+	var/turf/T = get_turf(src)
+	lastsignalers.Add("[time] <B>:</B> [usr.key] used [src] @ location ([T.x],[T.y],[T.z]) <B>:</B> [format_frequency(frequency)]/[code]")
+
+	var/datum/signal/signal = new
+	signal.source = src
+	signal.encryption = code
+	signal.data["message"] = message
+
+	radio_connection.post_signal(src, signal)
+
 /obj/item/radio/integrated/signal/Destroy()
-	if(SSradio)
-		SSradio.remove_object(src, frequency)
+	SSradio.remove_object(src, frequency)
 	return ..()
diff --git a/code/game/objects/items/devices/radio/headset.dm b/code/game/objects/items/devices/radio/headset.dm
index 5be20e10e09..87977b38461 100644
--- a/code/game/objects/items/devices/radio/headset.dm
+++ b/code/game/objects/items/devices/radio/headset.dm
@@ -159,6 +159,10 @@
 		return -1 //Transciever Disabled.
 	return ..(freq, level, 1)
 
+/obj/item/device/radio/headset/heads/ai_integrated/Destroy()
+	myAi = null
+	return ..()
+
 /obj/item/device/radio/headset/heads/rd
 	name = "research director's headset"
 	desc = "Headset of the researching God."
diff --git a/code/modules/clothing/suits/hoodies.dm b/code/modules/clothing/suits/hoodies.dm
index b8dc70f4e38..a330699fb2c 100644
--- a/code/modules/clothing/suits/hoodies.dm
+++ b/code/modules/clothing/suits/hoodies.dm
@@ -6,18 +6,17 @@
 	var/suittoggled = 0
 	var/hooded = 0
 
-/obj/item/clothing/suit/storage/hooded/New()
+/obj/item/clothing/suit/storage/hooded/Initialize()
+	. = ..()
 	MakeHood()
-	..()
 
 /obj/item/clothing/suit/storage/hooded/Destroy()
-	qdel(hood)
+	QDEL_NULL(hood)
 	return ..()
 
 /obj/item/clothing/suit/storage/hooded/proc/MakeHood()
 	if(!hood)
-		var/obj/item/clothing/head/winterhood/W = new hoodtype(src)
-		hood = W
+		hood = new hoodtype(src)
 
 /obj/item/clothing/suit/storage/hooded/equipped(mob/user, slot)
 	if(slot != slot_wear_suit)
diff --git a/code/modules/mining/mine_turfs.dm b/code/modules/mining/mine_turfs.dm
index 63ba78e7357..f29e84e9ea3 100644
--- a/code/modules/mining/mine_turfs.dm
+++ b/code/modules/mining/mine_turfs.dm
@@ -716,7 +716,6 @@
 	if(prob(25) && has_resources)
 		var/list/ore = list()
 		for(var/metal in resources)
-
 			switch(metal)
 				if("silicates")
 					ore += /obj/item/weapon/ore/glass
@@ -753,9 +752,10 @@
 								ore += /obj/item/weapon/ore/glass
 					else
 						ore += /obj/item/weapon/ore/glass
-		var/ore_path = pick(ore)
-		if(ore)
-			new ore_path(src)
+		if (ore.len)
+			var/ore_path = pick(ore)
+			if(ore)
+				new ore_path(src)
 
 	if(dug <= 10)
 		dug += 1