You don’t need anywhere near 3.5 hours to run tf2 x_X.
I did the math in one of the TF2 threads… Even accounting for a bunch of tie breakers, wasted time setting up teams, someone disconnected, delayed matches.. etc… It should not take that long lol. Not that I would mind playing tf2 for 3.5 hours 
. It’s just a bit excessive when based around warm-up map, 1st round, final round.
Snippet from TF2 forums:
“Team Generation (5 or 10 mins), Team Collaboration (5 mins), Warmup map (15 or 30 mins), first round (15 or 30mins), final round (30 mins). 15 Minutes allowed for stalemate situations.
Total: 2 hours.”