Map Info:
The cornerstone of the 2Fort series, this two-team Capture the Flag (CTF) map has a fort or base at each end, with a "moat" between them, and a bridge to cross the moat.  There are underwater tunnels leading into each fort, so that you can get in there without being detected by the people outside 

The objective of this map series is to grab the enemy flag out of their basement, and return it to the center of the battlement on your fort.  Doing so will award everyone on your team 10 frags.

Review:
Unlike traditional CTF TeamFortress allows the enemy flag to be captured even if your flag has been taken.  This is where the "team" comes in.  You must provide a good defense as well as show a decent offense.  The wonderful thing about 2Fort4 is that defending the flag is somewhat easy compared to other maps, because there is only one hallway leading to the flag.  If you can defend this hallway and provide even a mediocre offense, you can win this map.  This strategy is not however fool proof.  It is best used in conjunction with other defensive players who will serve to wound or cripple players as they make their way down to the basement.  You cannot possible defend the basement hallways if 2 or 3 players are coming down at once completely uninjured.  2Fort4's shortcomings come in that it has very little supply of ammo, and two major respawn areas have no ammo supply at all.  Teams must rely heavily on support classes such as medics and engineers to provide them with the goodies they need to do battle.  A good medic and engineer hiding behind a heavy weapons guy can prove to be a formidable obstical.

The balcony is wide open, and a favorite place for snipers to stand and pick people off coming over the bridge.  The water provides adequate cover, but once you fall in, the only way out is through the water tunnels.