well i see it as the zombies should be able to have friendly fire (seeing as how they are zombies they don't aim well), they should not level by the level of your gun (although i did notice the bayonet is the best upgrade towards the beginning), you cannot reload, the waves get way too long (because of the gun upgrades). other than that i think this could be an epic game with amazing game play. with these adjustments i would rate 5/5 but they are not there so it is a 2/5