diff --git a/gamedir/Data-1.13/CTHConstants.ini b/gamedir/Data-1.13/CTHConstants.ini
index fcf16e2c9..0c710bf12 100644
--- a/gamedir/Data-1.13/CTHConstants.ini
+++ b/gamedir/Data-1.13/CTHConstants.ini
@@ -356,4 +356,19 @@ RECOIL_COUNTER_INCREMENT_TRACER = 25
 NORMAL_RECOIL_DISTANCE = 140
 
 MAX_BULLET_DEV = 5.0
-RANGE_EFFECTS_DEV = TRUE
\ No newline at end of file
+RANGE_EFFECTS_DEV = TRUE
+
+;------------------------------------------------------------------------------
+; MAX_EFFECTIVE_RANGE_MULTIPLIER
+;   Maximum effective range of Gun that AI will still attempt to shoot
+;    Default: 1.1 which equates to 110% of the gun's effective range
+; MAX_EFFECTIVE_RANGE_REDUCTION
+;   Maximum reduction of chance to hit when exceeding effective range
+;    Default: 0.5 which equates to 50% reduction
+; MAX_EFFECTIVE_USE_GRADIENT
+;   Whether to apply the reduction as a flat reduction or as gradient 
+;    Default: FALSE which is flat reduction when exceeding range
+;------------------------------------------------------------------------------
+MAX_EFFECTIVE_RANGE_MULTIPLIER = 1.1
+MAX_EFFECTIVE_RANGE_REDUCTION = 0.5
+MAX_EFFECTIVE_USE_GRADIENT = FALSE
\ No newline at end of file
diff --git a/gamedir/Data/CTHConstants.ini b/gamedir/Data/CTHConstants.ini
index fcf16e2c9..0c710bf12 100644
--- a/gamedir/Data/CTHConstants.ini
+++ b/gamedir/Data/CTHConstants.ini
@@ -356,4 +356,19 @@ RECOIL_COUNTER_INCREMENT_TRACER = 25
 NORMAL_RECOIL_DISTANCE = 140
 
 MAX_BULLET_DEV = 5.0
-RANGE_EFFECTS_DEV = TRUE
\ No newline at end of file
+RANGE_EFFECTS_DEV = TRUE
+
+;------------------------------------------------------------------------------
+; MAX_EFFECTIVE_RANGE_MULTIPLIER
+;   Maximum effective range of Gun that AI will still attempt to shoot
+;    Default: 1.1 which equates to 110% of the gun's effective range
+; MAX_EFFECTIVE_RANGE_REDUCTION
+;   Maximum reduction of chance to hit when exceeding effective range
+;    Default: 0.5 which equates to 50% reduction
+; MAX_EFFECTIVE_USE_GRADIENT
+;   Whether to apply the reduction as a flat reduction or as gradient 
+;    Default: FALSE which is flat reduction when exceeding range
+;------------------------------------------------------------------------------
+MAX_EFFECTIVE_RANGE_MULTIPLIER = 1.1
+MAX_EFFECTIVE_RANGE_REDUCTION = 0.5
+MAX_EFFECTIVE_USE_GRADIENT = FALSE
\ No newline at end of file