The TF2 guys? ...I... don't think I'd tell them to do anything different from what they've already been doing, assuming I only get one team of them (i.e. RED or BLU, but not both). If I DO get both...hmmm... Actually, even then, I don't think I'd tell them to do anything different. These guys are psychotic and dangerous and endlessly spawning and and better off killing each other far away from normal society. They so clearly love their jobs that I just can't find it in me to tell them to stop either since there's no real consequences.
So I guess I'd just be the Administrator... except for friendships with the opposite team outside of work. I'd encourage those, especially since they're endlessly spawning. Feel free to hit the bars after hours, boys. Just don't kill any civilians.