Did an audit & found all of the units that are missing calls...

...to image_diagonal= for their projectiles

data/units/Arch_Mage.cfg

@@ -72,6 +72,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball-big7.png
 		halo_x,halo_y=12,-13
 		[/missile_frame]
@@ -151,6 +152,7 @@ get_hit_sound=groan.wav
 			begin=-100
 			end=0
 			image=projectiles/fireball.png
+			image_diagonal=projectiles/fireball.png
 			halo=halo/fireball-big7.png
 			halo_x,halo_y=12,-13
 			[/missile_frame]

data/units/Cockatrice.cfg

@@ -38,6 +38,7 @@ get_hit_sound=hiss.wav
 		begin=-200
 		end=0
 		image=projectiles/gaze.png
+		image_diagonal=projectiles/gaze.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Drake_Burner.cfg

@@ -63,6 +63,7 @@ get_hit_sound=groan.wav
 			begin=-100
 			end=0
 			image=projectiles/fireball.png
+			image_diagonal=projectiles/fireball.png
 			halo=halo/fireball7.png
 			halo_x,halo_y=14,-14
 		[/missile_frame]

data/units/Drake_Fighter.cfg

@@ -65,6 +65,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Fire.cfg

@@ -60,6 +60,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Flameheart.cfg

@@ -66,6 +66,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Flare.cfg

@@ -61,6 +61,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Glider.cfg

@@ -61,6 +61,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Inferno.cfg

@@ -60,6 +60,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Sky.cfg

@@ -65,6 +65,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Drake_Warrior.cfg

@@ -60,6 +60,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 	[/missile_frame]

data/units/Duelist.cfg

@@ -51,6 +51,7 @@ get_hit_sound=groan.wav
 		begin=-50
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Dwarvish_Dragonguard.cfg

@@ -54,6 +54,7 @@ get_hit_sound=groan.wav
 		begin=-150
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 		[/missile_frame]
 
 	[/attack]

data/units/Dwarvish_Lord.cfg

@@ -70,7 +70,8 @@ get_hit_sound=groan.wav
 		[missile_frame]
 		begin=-100
 		end=0
-		image=projectiles/hatchet.png
+		image=projectiles/hatchet-n.png
+		image_diagonal=projectiles/hatchet-ne.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Dwarvish_Thunderer.cfg

@@ -57,6 +57,7 @@ get_hit_sound=groan.wav
 		begin=-150
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 		[/missile_frame]
 
 	[/attack]

data/units/Dwarvish_Thunderguard.cfg

@@ -64,6 +64,7 @@ get_hit_sound=groan.wav
 		begin=-150
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 		[/missile_frame]
 
 	[/attack]

data/units/Elvish_High_Lord.cfg

@@ -68,6 +68,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball-halo1.png,halo/fireball-halo2.png,halo/fireball-halo3.png,halo/fireball-halo4.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=15,-4

data/units/Elvish_Lord.cfg

@@ -61,6 +61,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball-halo1.png,halo/fireball-halo2.png,halo/fireball-halo3.png,halo/fireball-halo4.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=15,-4

data/units/Elvish_Shaman.cfg

@@ -55,6 +55,7 @@ get_hit_sound=female-hit.wav
 		begin=-250
 		end=0
 		image=projectiles/entangle.png
+		image_diagonal=projectiles/entangle.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Fire_Dragon.cfg

@@ -77,6 +77,7 @@ get_hit_sound=hiss-big.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 		[/missile_frame]

data/units/Giant_Mudcrawler.cfg

@@ -27,6 +27,7 @@ usage=archer
 		begin=-100
 		end=0
 		image=projectiles/water_spay.png
+		image_diagonal=projectiles/water_spay.png
 		[/missile_frame]
 	[/attack]
 	[attack]

data/units/Great_Mage.cfg

@@ -71,6 +71,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		[/missile_frame]
 	[/attack]
 
@@ -147,6 +148,7 @@ get_hit_sound=groan.wav
 			begin=-100
 			end=0
 			image=projectiles/fireball.png
+			image_diagonal=projectiles/fireball.png
 			[/missile_frame]
 		[/attack]
 	[/female]

data/units/Mermaid_Enchantress.cfg

@@ -39,6 +39,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-150
 		end=0
 		image=projectiles/water-spray.png
+		image_diagonal=projectiles/water-spray.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Mermaid_Initiate.cfg

@@ -39,6 +39,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-150
 		end=0
 		image=projectiles/water-spray.png
+		image_diagonal=projectiles/water-spray.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Mermaid_Siren.cfg

@@ -41,6 +41,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-150
 		end=0
 		image=projectiles/water-spray.png
+		image_diagonal=projectiles/water-spray.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Merman_Entangler.cfg

@@ -34,6 +34,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-200
 		end=0
 		image=projectiles/web.png
+		image_diagonal=projectiles/web.png
 		[/missile_frame]
 		[sound]
 		time=-100

data/units/Merman_Netcaster.cfg

@@ -34,6 +34,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-200
 		end=0
 		image=projectiles/web.png
+		image_diagonal=projectiles/web.png
 		[/missile_frame]
 		[sound]
 		time=-100

data/units/Mudcrawler.cfg

@@ -32,6 +32,7 @@ usage=archer
 		begin=-100
 		end=0
 		image=projectiles/water_spay.png
+		image_diagonal=projectiles/water_spay.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Pirate_Galleon.cfg

@@ -23,6 +23,7 @@ unit_description= _ "Pirate galleons are to transport ships what wolves are to s
 		begin=-50
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 	[/missile_frame]
 	[/attack]
 [/unit]

data/units/Red_Mage.cfg

@@ -62,6 +62,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/fireball7.png
 		halo_x,halo_y=14,-14
 		[/missile_frame]
@@ -131,6 +132,7 @@ get_hit_sound=groan.wav
 			begin=-100
 			end=0
 			image=projectiles/fireball.png
+			image_diagonal=projectiles/fireball.png
 			halo=halo/fireball7.png
 			halo_x,halo_y=14,-14
 			[/missile_frame]

data/units/Sea_Hag.cfg

@@ -35,6 +35,7 @@ get_hit_sound=mermen-hit.wav
 		begin=-100
 		end=0
 		image=projectiles/water_spay.png
+		image_diagonal=projectiles/water_spay.png
 		[/missile_frame]
 	[/attack]
 [/unit]

data/units/Silver_Mage.cfg

@@ -132,6 +132,7 @@ get_hit_sound=groan.wav
 		begin=-100
 		end=0
 		image=projectiles/fireball.png
+		image_diagonal=projectiles/fireball.png
 		halo=halo/silver-mage-halo11.png,halo/silver-mage-halo12.png
 		halo_x,halo_y=14,-19
 		[/missile_frame]
@@ -219,6 +220,7 @@ get_hit_sound=groan.wav
 			begin=-100
 			end=0
 			image=projectiles/fireball.png
+			image_diagonal=projectiles/fireball.png
 			halo=halo/silver-mage-halo11.png,halo/silver-mage-halo12.png
 			halo_x,halo_y=14,-19
 			[/missile_frame]

data/units/Transport_Galleon.cfg

@@ -23,6 +23,7 @@ usage=null
 		begin=-50
 		end=0
 		image=projectiles/bullet.png
+		image_diagonal=projectiles/bullet.png
 	[/missile_frame]
 	[/attack]
 [/unit]

data/units/Watch_Tower.cfg

@@ -24,6 +24,7 @@ get_hit_sound=mace.wav
 		begin=-50
 		end=0
 		image=projectiles/stone.png
+		image_diagonal=projectiles/stone.png
 	[/missile_frame]
 	[/attack]
 [/unit]