Ok this past week i have came up with some ideas, ok
1

SmokeNades to block the enemies sight from seeing you.
2

Assories you can put on you're player, like you can pick you're head..etc..
3

A Sword, like the one on halo2 the one that when it is slashed it makes you go faster, and the more people you slash, the more energy is processed through the sword, which give you more power,speed.
5

the iceworld place should eventually go dark, and we could have nightvision and flashlights.
well thats all folks teeheh....*Stefan*