diff --git a/mods/cnc/rules/defaults.yaml b/mods/cnc/rules/defaults.yaml
index 9ce803003d..cc2038e2bd 100644
--- a/mods/cnc/rules/defaults.yaml
+++ b/mods/cnc/rules/defaults.yaml
@@ -439,7 +439,7 @@
 		Adjacent: 7
 		TerrainTypes: Clear,Road
 	TargetableBuilding:
-		TargetTypes: Ground
+		TargetTypes: Ground, Wall
 	Wall:
 		CrushClasses: wall
 		CrushSound: sandbag2.aud
diff --git a/mods/cnc/weapons.yaml b/mods/cnc/weapons.yaml
index 70e0bc470a..c5dc340664 100644
--- a/mods/cnc/weapons.yaml
+++ b/mods/cnc/weapons.yaml
@@ -202,6 +202,7 @@ HeliAAGun:
 Pistol:
 	ROF: 7
 	Range: 3c0
+	InvalidTargets: Wall	
 	Report: GUN18.AUD
 	Projectile: Bullet
 		Speed: 1c682
@@ -219,6 +220,7 @@ Pistol:
 M16:
 	ROF: 20
 	Range: 4c0
+	InvalidTargets: Wall	
 	Report: MGUN2.AUD
 	Projectile: Bullet
 		Speed: 1c682
@@ -358,6 +360,7 @@ OrcaAAMissiles:
 Flamethrower:
 	ROF: 55
 	Range: 2c512
+	InvalidTargets: Wall	
 	Report: FLAMER2.AUD
 	Projectile: Bullet
 		Speed: 1c682
@@ -377,6 +380,7 @@ Flamethrower:
 BigFlamer:
 	ROF: 50
 	Range: 3c512
+	InvalidTargets: Wall	
 	Report: FLAMER2.AUD
 	Projectile: Bullet
 		Speed: 341
@@ -664,6 +668,7 @@ ArtilleryShell:
 MachineGun:
 	ROF: 20
 	Burst: 4
+	InvalidTargets: Wall	
 	Range: 4c0
 	Report: MGUN11.AUD
 	Projectile: Bullet