Flag red
Flag blue

Capture the flag is a game mode where two teams play against each other to capture the enemy flag. Each flag is placed at (usually) oppsing ends of the map, and to capture the flag one must bring the enemy flag back their own flag. Usually the flag can not be captured if your own flag is not at your base, and you must return the flag first to score. To return the flag, you must kill the holder, and run over the flag.