diff --git a/code/__defines/_ast.dm b/code/__defines/_ast.dm
new file mode 100644
index 0000000000..e4c60d59ce
--- /dev/null
+++ b/code/__defines/_ast.dm
@@ -0,0 +1,24 @@
+/*
+	Constants: Operator Precedence
+	OOP_OR				- Logical or
+	OOP_AND				- Logical and
+	OOP_BIT				- Bitwise operations
+	OOP_EQUAL			- Equality checks
+	OOP_COMPARE		- Greater than, less then, etc
+	OOP_ADD				- Addition and subtraction
+	OOP_MULTIPLY	- Multiplication and division
+	OOP_POW				- Exponents
+	OOP_UNARY			- Unary Operators
+	OOP_GROUP			- Parentheses
+*/
+
+#define OOP_OR 1   	// ||
+#define OOP_AND 2   	// &&
+#define OOP_BIT 3   	// &, |
+#define OOP_EQUAL 4   	// ==, !=
+#define OOP_COMPARE 5   	// >, <, >=, <=
+#define OOP_ADD 6 	// +, -
+#define OOP_MULTIPLY 7   	// *, /, %
+#define OOP_POW 8		// ^
+#define OOP_UNARY 9   	// !
+#define OOP_GROUP 10   	// ()
diff --git a/code/__defines/_drinks.dm b/code/__defines/_drinks.dm
new file mode 100644
index 0000000000..97ccb03d7c
--- /dev/null
+++ b/code/__defines/_drinks.dm
@@ -0,0 +1,4 @@
+#define DRINK_FIZZ "fizz"
+#define DRINK_ICE "ice"
+#define DRINK_ICON_DEFAULT ""
+#define DRINK_ICON_NOISY "_noise"
diff --git a/code/__defines/misc.dm b/code/__defines/misc.dm
index 42393143e1..939ff6f513 100644
--- a/code/__defines/misc.dm
+++ b/code/__defines/misc.dm
@@ -603,3 +603,5 @@ GLOBAL_LIST_INIT(all_volume_channels, list(
 #define LADDER_CONSTRUCTION_UNANCHORED 0
 #define LADDER_CONSTRUCTION_WRENCHED 1
 #define LADDER_CONSTRUCTION_WELDED 2
+
+#define FINGERPRINT_COMPLETE 6
diff --git a/code/game/machinery/hologram.dm b/code/game/machinery/hologram.dm
index 2bb730fc36..6324c59519 100644
--- a/code/game/machinery/hologram.dm
+++ b/code/game/machinery/hologram.dm
@@ -27,7 +27,7 @@ Possible to do for anyone motivated enough:
 #define RANGE_BASED 4
 #define AREA_BASED 6
 
-var/const/HOLOPAD_MODE = RANGE_BASED
+#define IS_RANGE_BASED
 
 /obj/machinery/hologram/holopad
 	name = "\improper AI holopad"
@@ -175,15 +175,16 @@ For the other part of the code, check silicon say.dm. Particularly robot talk.*/
 		if(get_dist(H, user.eyeobj) > world.view)
 			clear_holo(user)
 		//VOREStation Add End
-		if((HOLOPAD_MODE == RANGE_BASED && (get_dist(H, src) > holo_range)))
+		#ifdef IS_RANGE_BASED
+		if((get_dist(H, src) > holo_range))
 			clear_holo(user)
+		#else
+		var/area/holopad_area = get_area(src)
+		var/area/hologram_area = get_area(H)
 
-		if(HOLOPAD_MODE == AREA_BASED)
-			var/area/holopad_area = get_area(src)
-			var/area/hologram_area = get_area(H)
-
-			if(!(hologram_area in holopad_area))
-				clear_holo(user)
+		if(!(hologram_area in holopad_area))
+			clear_holo(user)
+		#endif
 
 	return 1
 
@@ -251,3 +252,4 @@ Holographic project of everything else.
 #undef AREA_BASED
 #undef HOLOPAD_PASSIVE_POWER_USAGE
 #undef HOLOGRAM_POWER_USAGE
+#undef IS_RANGE_BASED
diff --git a/code/modules/admin/verbs/striketeam.dm b/code/modules/admin/verbs/striketeam.dm
index 6dfb95b709..fff00535cd 100644
--- a/code/modules/admin/verbs/striketeam.dm
+++ b/code/modules/admin/verbs/striketeam.dm
@@ -1,6 +1,4 @@
 //STRIKE TEAMS
-var/const/commandos_possible = 6 //if more Commandos are needed in the future
-
 /client/proc/strike_team()
 	set category = "Fun.Event Kit"
 	set name = "Spawn Strike Team"
diff --git a/code/modules/detectivework/forensics.dm b/code/modules/detectivework/forensics.dm
index 6a2dedee55..7f79017fd3 100644
--- a/code/modules/detectivework/forensics.dm
+++ b/code/modules/detectivework/forensics.dm
@@ -4,7 +4,6 @@
 
 //This is the output of the stringpercent(print) proc, and means about 80% of
 //the print must be there for it to be complete.  (Prints are 32 digits)
-var/const/FINGERPRINT_COMPLETE = 6
 /proc/is_complete_print(var/print)
 	return stringpercent(print) <= FINGERPRINT_COMPLETE
 
diff --git a/code/modules/food/drinkingglass/drinkingglass.dm b/code/modules/food/drinkingglass/drinkingglass.dm
index 1b51e48846..530e7e7ebe 100644
--- a/code/modules/food/drinkingglass/drinkingglass.dm
+++ b/code/modules/food/drinkingglass/drinkingglass.dm
@@ -1,8 +1,3 @@
-/var/const/DRINK_FIZZ = "fizz"
-/var/const/DRINK_ICE = "ice"
-/var/const/DRINK_ICON_DEFAULT = ""
-/var/const/DRINK_ICON_NOISY = "_noise"
-
 /obj/item/reagent_containers/food/drinks/glass2
 	name = "glass" // Name when empty
 	var/base_name = "glass" // Name to put in front of drinks, i.e. "[base_name] of [contents]"
diff --git a/code/modules/organs/blood.dm b/code/modules/organs/blood.dm
index 26c0e74c55..debfaa8c06 100644
--- a/code/modules/organs/blood.dm
+++ b/code/modules/organs/blood.dm
@@ -5,12 +5,11 @@
 //Blood levels. These are percentages based on the species blood_volume var.
 //Retained for archival/reference purposes - KK
 /*
-var/const/BLOOD_VOLUME_SAFE =    85
-var/const/BLOOD_VOLUME_OKAY =    75
-var/const/BLOOD_VOLUME_BAD =     60
-var/const/BLOOD_VOLUME_SURVIVE = 40
+BLOOD_VOLUME_SAFE =    85
+BLOOD_VOLUME_OKAY =    75
+BLOOD_VOLUME_BAD =     60
+BLOOD_VOLUME_SURVIVE = 40
 */
-var/const/CE_STABLE_THRESHOLD = 0.5
 
 /mob/living/carbon/human/var/datum/reagents/vessel // Container for blood and BLOOD ONLY. Do not transfer other chems here.
 /mob/living/carbon/human/var/var/pale = 0          // Should affect how mob sprite is drawn, but currently doesn't.
@@ -111,9 +110,6 @@ var/const/CE_STABLE_THRESHOLD = 0.5
 		if(CE_STABLE in chem_effects)
 			dmg_coef = 0.5
 			threshold_coef = 0.75
-//	These are Bay bits, do some sort of calculation.
-//			dmg_coef = min(1, 10/chem_effects[CE_STABLE]) //TODO: add effect for increased damage
-//			threshold_coef = min(dmg_coef / CE_STABLE_THRESHOLD, 1)
 
 		if(blood_volume_raw >= species.blood_volume*species.blood_level_safe)
 			if(pale)
diff --git a/code/modules/reagents/reagents/_reagents.dm b/code/modules/reagents/reagents/_reagents.dm
index b75108f220..7af8ac4417 100644
--- a/code/modules/reagents/reagents/_reagents.dm
+++ b/code/modules/reagents/reagents/_reagents.dm
@@ -1,6 +1,3 @@
-
-
-
 /datum/reagent
 	var/name = REAGENT_DEVELOPER_WARNING
 	var/id = REAGENT_ID_DEVELOPER_WARNING
diff --git a/code/modules/scripting/AST/AST Nodes.dm b/code/modules/scripting/AST/AST Nodes.dm
index 0ab6a90118..8a7a9db780 100644
--- a/code/modules/scripting/AST/AST Nodes.dm	
+++ b/code/modules/scripting/AST/AST Nodes.dm	
@@ -26,16 +26,6 @@
 	OOP_UNARY			- Unary Operators
 	OOP_GROUP			- Parentheses
 */
-var/const/OOP_OR      = 				  1   	// ||
-var/const/OOP_AND     = OOP_OR			+ 1   	// &&
-var/const/OOP_BIT     = OOP_AND			+ 1   	// &, |
-var/const/OOP_EQUAL   = OOP_BIT			+ 1   	// ==, !=
-var/const/OOP_COMPARE = OOP_EQUAL		+ 1   	// >, <, >=, <=
-var/const/OOP_ADD     = OOP_COMPARE		+ 1 	// +, -
-var/const/OOP_MULTIPLY= OOP_ADD			+ 1   	// *, /, %
-var/const/OOP_POW     = OOP_MULTIPLY	+ 1		// ^
-var/const/OOP_UNARY   = OOP_POW			+ 1   	// !
-var/const/OOP_GROUP   = OOP_UNARY		+ 1   	// ()
 
 /*
 	Class: node
diff --git a/code/modules/scripting/Parser/Keywords.dm b/code/modules/scripting/Parser/Keywords.dm
index 90b0428c19..19d14484d5 100644
--- a/code/modules/scripting/Parser/Keywords.dm
+++ b/code/modules/scripting/Parser/Keywords.dm
@@ -3,10 +3,10 @@
 /*
 	File: Keywords
 */
-var/const/KW_FAIL = 0 //Fatal error; stop parsing entire script.
-var/const/KW_PASS = 1 //OK
-var/const/KW_ERR  = 2 //Non-fatal error, keyword couldn't be handled properly. Ignore keyword but continue on.
-var/const/KW_WARN = 3 //Warning
+#define KW_FAIL 0 //Fatal error; stop parsing entire script.
+#define KW_PASS 1 //OK
+#define KW_ERR  2 //Non-fatal error, keyword couldn't be handled properly. Ignore keyword but continue on.
+#define KW_WARN 3 //Warning
 
 /*
 var/const/Class: n_Keyword
@@ -156,3 +156,8 @@ var/const/Represents a special statement in the code triggered by a keyword.
 	else
 		parser.errors+=new/scriptError/BadToken(parser.curToken)
 		return KW_FAIL
+
+#undef KW_FAIL
+#undef KW_PASS
+#undef KW_ERR
+#undef KW_WARN
diff --git a/vorestation.dme b/vorestation.dme
index 5f54e00760..a4aea84647 100644
--- a/vorestation.dme
+++ b/vorestation.dme
@@ -27,10 +27,12 @@
 #include "code\global_init.dm"
 #include "code\world.dm"
 #include "code\__defines\__globals.dm"
+#include "code\__defines\_ast.dm"
 #include "code\__defines\_atoms.dm"
 #include "code\__defines\_bitfields.dm"
 #include "code\__defines\_click.dm"
 #include "code\__defines\_compile_options.dm"
+#include "code\__defines\_drinks.dm"
 #include "code\__defines\_flags.dm"
 #include "code\__defines\_fruits.dm"
 #include "code\__defines\_helpers.dm"