Merge pull request #3813 from Belsima/clickityclack

Adds a metric assload of sounds.

code/modules/projectiles/guns/projectile.dm

@@ -83,6 +83,7 @@
 	switch(handle_casings)
 		if(EJECT_CASINGS) //eject casing onto ground.
 			chambered.loc = get_turf(src)
+			playsound(src.loc, "casing", 50, 1)
 		if(CYCLE_CASINGS) //cycle the casing back to the end.
 			if(ammo_magazine)
 				ammo_magazine.stored_ammo += chambered