I'm level 16 (ex. 3000+) and still using Infiltrator armor, upgraded as much as possible. Works great.
I too was using that until i got sentry for the cloaking ability. I'm doubting that ability now. Don't know how much it's useful?
If something works, it works. Fine, people who camp Beserker Shields don't earn my respect in any way, and I wouldn't do it, for it takes away the challenge (challenge?) of playing, BUT if that's what they want to do to try and win, then I have no problem with that. Same with people who aim at the floor. Oh, and are you sure you understand the concept of 'fun'? You sound rather hostile, considering this is just a game. People who kill your binary representation are terrible? Shame.
Hey terrorist add me I want to play u later I wana see wut U have in store for me wen I get to ur level
thats when i was assault, now im back to infiltrator so it might go a little different and i dont need to win, just enough kills