Well i didn't find anything gamebreaking yet(didn't make it far), but i noticed that your HK21's name needs changed and its damage is ridiculously low - i put an entire clip into a zombie and he didn't die. I also think that since you pay 3000 points, it should have atleast 300 reserve ammo.
I don't know if it was intentional but you can't buy the Thompson in the second area, unless thats unlocked in an EE later or something.
EDIT: hope you fix the issues soon. I don't know how, but World at war somehow can't find scripts even though the map was working not even 5 minutes ago.
King of the Zombies