Here is few ideas from me and other peoples
1) RPG won't explode in impact with wall/floor/building sometimes.
2) LMS and ELM are broken.
3) Need weapon's modification, costumization and upgrades.
4) Bunker and Courtyard are too dark.
6) Skills, attachments/attributes.
7) Zombie, Capture the Flag modes.
8) More maps in diffrent or same sizes and evironmental danger.
9) Game level limits is broken.
10) Need more player levels.
11) Weapon prize too cheap?
12) Game option to add range and wind for sniping.
13) More damage and accuracy for shotgun.
14) Diffrent mobility for each weapon.
15) Add Army Force Online to "http://armorgames.com" for more players.
16) Add Social things like add friend
18) New weapons.
20) Unit Classes.
21) Game option for more then Team A and Team B?
Give "+" so the developers can see :)