For me it works fine on any server. I just don't spamkill everyone like a mad kid, but I set up weapon modifications that could (without hacks) actually do as well as I do with the hack.
I think the best for Support is:
UMP-45 w/ burst fire, suppressor, flash. Any enemy gets killed in 1 click, but I still shoot 2 so they wouldn't doubt me. And if they start calling me a hacker, then I just tell them the modification, and then they just chill...
I've only been kicked once, and it was an admin's decision. I've played over 20 rounds.