diff --git a/code/__DEFINES/combat.dm b/code/__DEFINES/combat.dm
index 714e011a29..2fdd6a98bc 100644
--- a/code/__DEFINES/combat.dm
+++ b/code/__DEFINES/combat.dm
@@ -228,21 +228,27 @@ GLOBAL_LIST_INIT(shove_disarming_types, typecacheof(list(
 /// Attack outright missed because the target dodged. Should usually be combined with redirection passthrough or something (see martial arts)
 #define BLOCK_TARGET_DODGED				(1<<7)
 /// Meta-flag for run_block/do_run_block : By default, BLOCK_SUCCESS tells do_run_block() to assume the attack is completely blocked and not continue the block chain. If this is present, it will continue to check other items in the chain rather than stopping.
-#define BLOCK_cONTINUE_CHAIN			(1<<8)
+#define BLOCK_CONTINUE_CHAIN			(1<<8)
 
 /// For keys in associative list/block_return as we don't want to saturate our (somewhat) limited flags.
 #define BLOCK_RETURN_REDIRECT_METHOD			"REDIRECT_METHOD"
 	/// Pass through victim
 	#define REDIRECT_METHOD_PASSTHROUGH			"passthrough"
-	/// Reflect using normal angular/mirrorlike reflection
-	#define REDIRECT_METHOD_REFLECT				"reflect"
 	/// Deflect at randomish angle
 	#define REDIRECT_METHOD_DEFLECT				"deflect"
-	/// do not taser the bad man with the desword
+	/// reverse 180 angle, basically (as opposed to "realistic" wall reflections)
+	#define REDIRECT_METHOD_REFLECT				"reflect"
+	/// "do not taser the bad man with the desword" - actually aims at the firer/attacker rather than just reversing
 	#define REDIRECT_METHOD_RETURN_TO_SENDER		"no_you"
 
+/// These keys are generally only applied to the list if real_attack is FALSE. Used incase we want to make "smarter" mob AI in the future or something.
+/// Tells the caller how likely from 0 (none) to 100 (always) we are to reflect energy projectiles
+#define BLOCK_RETURN_REFLECT_PROJECTILE_CHANCE
+/// Tells the caller how likely we are to block attacks from 0 to 100 in general
+#define BLOCK_RETURN_NORMAL_BLOCK_CHANCE
+
 /// Default if the above isn't set in the list.
-#define DEFAULT_REDIRECT_METHOD_PROJECTILE REDIRECT_METHOD_REFLECT
+#define DEFAULT_REDIRECT_METHOD_PROJECTILE REDIRECT_METHOD_DEFLECT
 
 /// Block priorities
 #define BLOCK_PRIORITY_HELD_ITEM				100
diff --git a/code/game/objects/items/grenades/grenade.dm b/code/game/objects/items/grenades/grenade.dm
index 85ec9ad634..c72813bec3 100644
--- a/code/game/objects/items/grenades/grenade.dm
+++ b/code/game/objects/items/grenades/grenade.dm
@@ -121,7 +121,7 @@
 		if(damage && !P.nodamage && (P.damage_type != STAMINA) && prob(15))
 			owner.visible_message("<span class='danger'>[attack_text] hits [owner]'s [src], setting it off! What a shot!</span>")
 			prime()
-			return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL | BLOCK_INTERRUPT_CHAIN
+			return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
 	return ..()
 
 /obj/item/proc/grenade_prime_react(obj/item/grenade/nade)
diff --git a/code/game/objects/items/twohanded.dm b/code/game/objects/items/twohanded.dm
index dafb7430ae..66f85bb459 100644
--- a/code/game/objects/items/twohanded.dm
+++ b/code/game/objects/items/twohanded.dm
@@ -755,7 +755,7 @@
 	if(real_attack && (attack_type & ATTACK_TYPE_PROJECTILE))
 		owner.visible_message("<span class='danger'>Ranged attacks just make [owner] angrier!</span>")
 		playsound(src, pick('sound/weapons/bulletflyby.ogg', 'sound/weapons/bulletflyby2.ogg', 'sound/weapons/bulletflyby3.ogg'), 75, 1)
-		return BLOCK_SUCCESS | BLOCK_INTERRUPT_CHAIN | BLOCK_PHYSICAL_EXTERNAL
+		return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
 	return ..()
 
 //GREY TIDE
@@ -908,7 +908,7 @@
 				return BLOCK_SUCCESS | BLOCK_REDIRECTED | BLOCK_SHOULD_REDIRECT | BLOCK_PHYSICAL_EXTERNAL
 			else
 				owner.visible_message("<span class='danger'>[owner] parries [attack_text] with [src]!</span>")
-				return BLOCK_SUCCESS | BLOCK_PARRY
+				return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
 	return NONE
 
 /obj/item/twohanded/vibro_weapon/update_icon_state()
diff --git a/code/game/objects/items/weaponry.dm b/code/game/objects/items/weaponry.dm
index 8746ac49a5..58c8aa2d8e 100644
--- a/code/game/objects/items/weaponry.dm
+++ b/code/game/objects/items/weaponry.dm
@@ -157,7 +157,7 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 
 /obj/item/claymore/highlander/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	if((attack_type & ATTACK_TYPE_PROJECTILE) && is_energy_reflectable_projectile(object))
-		return BLOCK_SUCCESS | BLOCK_SHOULD_REDIRECT | BLOCK_PHYSICAL_EXTERNAL | BLOCK_REDIRECT
+		return BLOCK_SUCCESS | BLOCK_SHOULD_REDIRECT | BLOCK_PHYSICAL_EXTERNAL | BLOCK_REDIRECTED
 	return ..()
 
 /obj/item/claymore/highlander/proc/add_notch(mob/living/user) //DYNAMIC CLAYMORE PROGRESSION SYSTEM - THIS IS THE FUTURE
@@ -583,14 +583,13 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 	force = 12
 	throwforce = 15
 
-/obj/item/melee/baseball_bat/ablative/IsReflect()//some day this will reflect thrown items instead of lasers
-	var/picksound = rand(1,2)
-	var/turf = get_turf(src)
-	if(picksound == 1)
-		playsound(turf, 'sound/weapons/effects/batreflect1.ogg', 50, 1)
-	if(picksound == 2)
-		playsound(turf, 'sound/weapons/effects/batreflect2.ogg', 50, 1)
-	return 1
+/obj/item/melee/baseball_bat/ablative/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
+	//some day this will reflect thrown items instead of lasers
+	if(is_energy_reflectable_projectile(object) && (attack_type == ATTACK_TYPE_PROJECTILE))
+		var/turf = get_turf(src)
+		playsound(turf, pick('sound/weapons/effects/batreflect1.ogg', 'sound/weapons/effects/batreflect2.ogg'), 50, 1)
+		return BLOCK_SUCESS | BLOCK_SHOULD_REDIRECT | BLOCK_PHYSICAL_EXTERNAL | BLOCK_REDIRECTED
+	return ..()
 
 /obj/item/melee/baseball_bat/ablative/syndi
 	name = "syndicate major league bat"
diff --git a/code/modules/antagonists/cult/cult_items.dm b/code/modules/antagonists/cult/cult_items.dm
index 7d1bbeeddc..cc6ea983e8 100644
--- a/code/modules/antagonists/cult/cult_items.dm
+++ b/code/modules/antagonists/cult/cult_items.dm
@@ -725,19 +725,19 @@
 			playsound(T, 'sound/effects/glassbr3.ogg', 100)
 	qdel(src)
 
-/obj/item/twohanded/cult_spear/hit_reaction(mob/living/carbon/human/owner, atom/movable/hitby, attack_text = "the attack", final_block_chance = 0, damage = 0, attack_type = MELEE_ATTACK)
+/obj/item/twohanded/cult_spear/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	if(wielded)
 		final_block_chance *= 2
 	if(prob(final_block_chance))
-		if(attack_type & PROJECTILE_ATTACK)
+		if(attack_type & ATTACK_TYPE_PROJECTILE)
 			owner.visible_message("<span class='danger'>[owner] deflects [attack_text] with [src]!</span>")
 			playsound(src, pick('sound/weapons/effects/ric1.ogg', 'sound/weapons/effects/ric2.ogg', 'sound/weapons/effects/ric3.ogg', 'sound/weapons/effects/ric4.ogg', 'sound/weapons/effects/ric5.ogg'), 100, 1)
-			return TRUE
+			return BLOCK_SUCCESS | BLOCK_SHOULD_REDIRECT | BLOCK_REDIRECTED | BLOCK_PHYSICAL_EXTERNAL
 		else
 			playsound(src, 'sound/weapons/parry.ogg', 100, 1)
 			owner.visible_message("<span class='danger'>[owner] parries [attack_text] with [src]!</span>")
-			return TRUE
-	return FALSE
+			return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
+	return BLOCK_NONE
 
 /datum/action/innate/cult/spear
 	name = "Bloody Bond"
@@ -936,10 +936,13 @@
 	hitsound = 'sound/weapons/smash.ogg'
 	var/illusions = 2
 
-/obj/item/shield/mirror/hit_reaction(mob/living/carbon/human/owner, atom/movable/hitby, attack_text = "the attack", final_block_chance = 0, damage = 0, attack_type = MELEE_ATTACK)
+/obj/item/shield/mirror/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
+	if(!real_attack)
+		block_return[BLOCK_RETURN_REFLECT_PROJECTILE_CHANCE] = final_block_chance
+		return ..()
 	if(iscultist(owner))
-		if(istype(hitby, /obj/item/projectile))
-			var/obj/item/projectile/P = hitby
+		if(istype(object, /obj/item/projectile) && (attack_type == ATTACK_TYPE_PROJECTILE))
+			var/obj/item/projectile/P = object
 			if(P.damage >= 30)
 				var/turf/T = get_turf(owner)
 				T.visible_message("<span class='warning'>The sheer force from [P] shatters the mirror shield!</span>")
@@ -947,11 +950,13 @@
 				playsound(T, 'sound/effects/glassbr3.ogg', 100)
 				owner.DefaultCombatKnockdown(25)
 				qdel(src)
-				return FALSE
+				return BLOCK_NONE
 			if(P.is_reflectable)
-				return FALSE //To avoid reflection chance double-dipping with block chance
+				if(prob(final_block_chance))
+					return BLOCK_SUCCESS | BLOCK_SHOULD_REDIRECT | BLOCK_PHYSICAL_EXTERNAL | BLOCK_REDIRECTED
+				return BLOCK_NONE	//To avoid reflection chance double-dipping with block chance
 		. = ..()
-		if(.)
+		if(. & BLOCK_SUCCESS)
 			playsound(src, 'sound/weapons/parry.ogg', 100, 1)
 			if(illusions > 0)
 				illusions--
@@ -966,7 +971,7 @@
 					E.Copy_Parent(owner, 70, 10)
 					E.GiveTarget(owner)
 					E.Goto(owner, owner.movement_delay(), E.minimum_distance)
-			return TRUE
+			return
 	else
 		if(prob(50))
 			var/mob/living/simple_animal/hostile/illusion/H = new(owner.loc)
@@ -975,7 +980,7 @@
 			H.GiveTarget(owner)
 			H.move_to_delay = owner.movement_delay()
 			to_chat(owner, "<span class='danger'><b>[src] betrays you!</b></span>")
-		return FALSE
+		return BLOCK_NONE
 
 /obj/item/shield/mirror/proc/readd()
 	illusions++
diff --git a/code/modules/clothing/spacesuits/hardsuit.dm b/code/modules/clothing/spacesuits/hardsuit.dm
index 1bad198c73..a3d4cf367b 100644
--- a/code/modules/clothing/spacesuits/hardsuit.dm
+++ b/code/modules/clothing/spacesuits/hardsuit.dm
@@ -757,7 +757,11 @@
 	if(!allowed)
 		allowed = GLOB.advanced_hardsuit_allowed
 
-/obj/item/clothing/suit/space/hardsuit/shielded/hit_reaction(mob/living/carbon/human/owner, atom/movable/hitby, attack_text = "the attack", final_block_chance = 0, damage = 0, attack_type = MELEE_ATTACK)
+/obj/item/clothing/suit/space/hardsuit/shielded/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
+	if(!real_attack)
+		if(current_charges > 0)
+			return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
+		return BLOCK_NONE
 	recharge_cooldown = world.time + recharge_delay
 	if(current_charges > 0)
 		var/datum/effect_system/spark_spread/s = new
@@ -771,8 +775,8 @@
 			owner.visible_message("[owner]'s shield overloads!")
 			shield_state = "broken"
 			owner.update_inv_wear_suit()
-		return 1
-	return 0
+		return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
+	return BLOCK_NONE
 
 /obj/item/clothing/suit/space/hardsuit/shielded/Destroy()
 	STOP_PROCESSING(SSobj, src)
diff --git a/code/modules/clothing/suits/reactive_armour.dm b/code/modules/clothing/suits/reactive_armour.dm
index fb8d62e350..24280f953a 100644
--- a/code/modules/clothing/suits/reactive_armour.dm
+++ b/code/modules/clothing/suits/reactive_armour.dm
@@ -4,7 +4,6 @@
 	icon_state = "reactiveoff"
 	icon = 'icons/obj/clothing/suits.dmi'
 	w_class = WEIGHT_CLASS_BULKY
-	var/hit_reaction_chance = 50
 
 /obj/item/reactive_armour_shell/attackby(obj/item/I, mob/user, params)
 	..()
@@ -39,6 +38,7 @@
 	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | ACID_PROOF
 	hit_reaction_chance = 50 // Only on the chest yet blocks all attacks?
 	rad_flags = RAD_PROTECT_CONTENTS | RAD_NO_CONTAMINATE
+	var/hit_reaction_chance = 50
 
 /obj/item/clothing/suit/armor/reactive/attack_self(mob/user)
 	active = !(active)
diff --git a/code/modules/clothing/under/color.dm b/code/modules/clothing/under/color.dm
index c02f78cb8f..cce41b9fc0 100644
--- a/code/modules/clothing/under/color.dm
+++ b/code/modules/clothing/under/color.dm
@@ -81,8 +81,9 @@
 
 /obj/item/clothing/under/color/grey/glorf/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	. = ..()
-	if(real_attack)
-		owner.forcesay(GLOB.hit_appends)
+	if(real_attack && ishuman(owner))
+		var/mob/living/human/H = owner
+		H.forcesay(GLOB.hit_appends)
 
 /obj/item/clothing/under/color/blue
 	name = "blue jumpsuit"
diff --git a/code/modules/mining/lavaland/necropolis_chests.dm b/code/modules/mining/lavaland/necropolis_chests.dm
index bf25bb9da8..d0b8c113b4 100644
--- a/code/modules/mining/lavaland/necropolis_chests.dm
+++ b/code/modules/mining/lavaland/necropolis_chests.dm
@@ -835,9 +835,9 @@
 
 	force = CLAMP((ghost_counter * 4), 0, 75)
 	user.visible_message("<span class='danger'>[user] strikes with the force of [ghost_counter] vengeful spirits!</span>")
-	..()
+	return ..()
 
-/obj/item/melee/ghost_sword/hit_reaction(mob/living/carbon/human/owner, atom/movable/hitby, attack_text = "the attack", final_block_chance = 0, damage = 0, attack_type = MELEE_ATTACK)
+/obj/item/melee/ghost_sword/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	var/ghost_counter = ghost_check()
 	final_block_chance += CLAMP((ghost_counter * 5), 0, 75)
 	owner.visible_message("<span class='danger'>[owner] is protected by a ring of [ghost_counter] ghosts!</span>")
diff --git a/code/modules/mob/living/carbon/alien/humanoid/caste/hunter.dm b/code/modules/mob/living/carbon/alien/humanoid/caste/hunter.dm
index 189af32da8..1bb545b8ea 100644
--- a/code/modules/mob/living/carbon/alien/humanoid/caste/hunter.dm
+++ b/code/modules/mob/living/carbon/alien/humanoid/caste/hunter.dm
@@ -63,7 +63,7 @@
 	if(hit_atom)
 		if(isliving(hit_atom))
 			var/mob/living/L = hit_atom
-			if(L.run_block(src, 0, "the [name]", attack_type = LEAP_ATTACK, 0, src) & BLOCK_SUCCESS)
+			if(L.run_block(src, 0, "the [name]", attack_type = ATTACK_TYPE_TACKLE, 0, src) & BLOCK_SUCCESS)
 				DefaultCombatKnockdown(40, 1, 1)
 			else
 				L.visible_message("<span class ='danger'>[src] pounces on [L]!</span>", "<span class ='userdanger'>[src] pounces on you!</span>")
diff --git a/code/modules/mob/living/living_block.dm b/code/modules/mob/living/living_block.dm
index 13e236a931..c3b9fc73f4 100644
--- a/code/modules/mob/living/living_block.dm
+++ b/code/modules/mob/living/living_block.dm
@@ -76,9 +76,15 @@
 	/// Block priority, higher means we check this higher in the "chain".
 	var/block_priority = BLOCK_PRIORITY_DEFAULT
 
+/// Runs block and returns flag for do_run_block to process.
 /obj/item/proc/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	SEND_SIGNAL(src, COMSIG_ITEM_RUN_BLOCK, args)
 	if(prob(final_block_chance))
 		owner.visible_message("<span class='danger'>[owner] blocks [attack_text] with [src]!</span>")
 		return BLOCK_SUCCESS | BLOCK_PHYSICAL_EXTERNAL
 	return BLOCK_NONE
+
+/// Returns block information using list/block_return. Used for check_block() on mobs.
+/obj/item/proc/check_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
+	SEND_SIGNAL(src, COMSIG_ITEM_CHECK_BLOCK, args)
+	block_return[BLOCK_RETURN_NORMAL_BLOCK_CHANCE] = final_block_chance
diff --git a/code/modules/mob/living/silicon/silicon_defense.dm b/code/modules/mob/living/silicon/silicon_defense.dm
index 1c6784ab95..98d990e5ea 100644
--- a/code/modules/mob/living/silicon/silicon_defense.dm
+++ b/code/modules/mob/living/silicon/silicon_defense.dm
@@ -115,7 +115,7 @@
 		if(reflect_bullet_check(P, def_zone))
 			return -1 // complete projectile permutation
 #warn implement blocktypes
-		if(run_block(P, P.damage, "the [P.name]", PROJECTILE_ATTACK, P.armour_penetration) & BLOCK_SUCCESS)
+		if(run_block(P, P.damage, "the [P.name]", ATTACK_TYPE_PROJECTILE, P.armour_penetration) & BLOCK_SUCCESS)
 			P.on_hit(src, 100, def_zone)
 			return BULLET_ACT_BLOCK
 	if((P.damage_type == BRUTE || P.damage_type == BURN))
diff --git a/code/modules/mob/living/simple_animal/guardian/types/charger.dm b/code/modules/mob/living/simple_animal/guardian/types/charger.dm
index 10f7b6893f..9457c8153d 100644
--- a/code/modules/mob/living/simple_animal/guardian/types/charger.dm
+++ b/code/modules/mob/living/simple_animal/guardian/types/charger.dm
@@ -54,7 +54,7 @@
 			var/blocked = FALSE
 			if(hasmatchingsummoner(hit_atom)) //if the summoner matches don't hurt them
 				blocked = TRUE
-			if(L.run_block(src, 90, "[name]", attack_type = ATTACK_TYPE_LEAP, 0, src) & BLOCK_SUCCESS)
+			if(L.run_block(src, 90, "[name]", attack_type = ATTACK_TYPE_TACKLE, 0, src) & BLOCK_SUCCESS)
 				blocked = TRUE
 			if(!blocked)
 				L.drop_all_held_items()
diff --git a/code/modules/projectiles/guns/magic/staff.dm b/code/modules/projectiles/guns/magic/staff.dm
index c81880ab55..274a1c96f9 100644
--- a/code/modules/projectiles/guns/magic/staff.dm
+++ b/code/modules/projectiles/guns/magic/staff.dm
@@ -92,7 +92,7 @@
 
 /obj/item/gun/magic/staff/spellblade/run_block(mob/living/owner, real_attack, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	// Do not block projectiles.
-	if(attack_type & PROJECTILE_ATTACK)
+	if(attack_type & ATTACK_TYPE_PROJECTILE)
 		return BLOCK_NONE
 	return ..()
 
diff --git a/modular_citadel/code/modules/mob/living/silicon/robot/dogborg_equipment.dm b/modular_citadel/code/modules/mob/living/silicon/robot/dogborg_equipment.dm
index 5cf4abb5bf..a38f58b655 100644
--- a/modular_citadel/code/modules/mob/living/silicon/robot/dogborg_equipment.dm
+++ b/modular_citadel/code/modules/mob/living/silicon/robot/dogborg_equipment.dm
@@ -424,7 +424,7 @@ SLEEPER CODE IS IN game/objects/items/devices/dogborg_sleeper.dm !
 	if(hit_atom)
 		if(isliving(hit_atom))
 			var/mob/living/L = hit_atom
-			if(L.run_block(0, "the [name]", src, attack_type = LEAP_ATTACK, 0, src) & BLOCK_SUCCESS)
+			if(L.run_block(0, "the [name]", src, attack_type = ATTACK_TYPE_TACKLE, 0, src) & BLOCK_SUCCESS)
 				DefaultCombatKnockdown(15, 1, 1)
 			else
 				L.visible_message("<span class ='danger'>[src] pounces on [L]!</span>", "<span class ='userdanger'>[src] pounces on you!</span>")