It’s capture the flag. You pic one of 9 classes, and you either defend, support, or attack the flag. There are also command point maps (which TF2 claims to use more than CTF) where you take the flag and move it to a certain point on the map. These maps are played in three stages, ending either when the attackers run the flag thru all three phases or the defending team runs the time limit out. That’s TFC in a nutshell.
