When I play tremulous xserxerx (w) if I join a team it says for aliens :you cannot leave the alien team until the build timer has expired and I havent even played and a similar one for humans. What should I do?
That has no relation to this topic, but I'll answer anyway.
It's to stop people from exiting and rejoining the team to avoid build timers.
However if you're not on a team, or not using a building class, you should probably inform xserverx.com since they're the ones that manage that silly mod.