AVG is not a very good antivirus in my experience and I have seen it create nuumerus problems on varius computer. I generally suggest my clients to not use AVG and use something that actually does detect viruses.
What about other antivirus software? I have Symantec Corp. 10.2 installed and I'm not planning to remove it from the system just to play Wolfteam. However I'm willing to remove it just to check and see if it does affact Wolfteam.
I'll post the results once I get to try it out.