Capture the flag works like the standard CTF just with 4 teams/bases. Uncommon has added a load of great game types too.

Subtraction: When your flag is captured, you lose a point. With normal scoring in CTF4, you can defend your flag perfectly and still lose, but Subtraction can make defense more effective.

Distribution: The capture limit is how many times you must capture each enemy flag. Once you've caught your limit on a particular flag, you can't even pick it up anymore. The number of captures left on each flag is displayed next to your team's flag in the HUD, as in the picture above.

Elimination: Played with Subtraction and/or Distribution. If, for example, the capture limit is 3, and your score hits -3, your team is eliminated! If you are playing Distribution, then your are eliminated when every other team has hit their limit on capturing your flag.

Designation: Your team will always have an assigned flag to capture. When you get that one, then you're assigned a new designated target.

Carry flags back: You have to carry your flag back to base instead of just touching it.

Carry multiple flags: Allows you to carry as many flags as you can get away with.

Translocate with flags: Lets you translocate without dropping your flags. If you shoot off a TL beacon and then pick up a flag, the beacon will be returned to you. That way you can't just translocate back to your base for an instant capture.

Uncommon - Mod creator

IMPORTANT:
You must download the mod to play these maps. You must also download and install the CTF4 texture mod.