Fix broken tesh mechanics + nerf underwater diving

modular_chomp/code/modules/projectiles/gun.dm

@@ -0,0 +1,9 @@
+// prevent gun activation when stealth swimming. The low alpha hides you from NPC AI, which allows you to cheese mobs.
+/obj/item/weapon/gun/special_check(var/mob/user)
+	var/mob/living/L = user
+	if(istype(L))
+		if(L.has_modifier_of_type(/datum/modifier/underwater_stealth))
+			to_chat(user,"<span class='warning'>You cannot use guns whilst hiding underwater!</span>")
+			return 0
+
+	return ..()