We could really, i mean really use some more maps...these get boring....Maps like maze's that would be challenging and fun would be cool. Upgrading guns? i guess thats going to kills ranks then...its basically smaking ranks in the face if you could upgrade a gun.
 "SAS: Zombie Assault 3"){kind=icon}
 "Epic Battle Fantasy 4"){kind=icon}
 "Backyard Monsters (removed)"){kind=icon}