The standard game mode where everyone is against each other, and the player who gets the most points by the end of the round wins.
Players are split into two teams, which then fight each other. If there's good team coordination, you may want to consider class synergies.
It is like Team Deathmatch, but there are objective zones present on the map, and standing inside them awards you with 10 points per second. Moreover, the winning team is determined entirely by the amount of points earned from controlling hardpoints. If there's more than one hardpoint, then the first one is only active for 45 seconds before the next one activates, and everyone rushes for it, then for the third one, etc.
The objective of this game mode is to steal your opponent's flag (Shown in the UI) and take it to your team's flag which should remain at its spawn point, to score. If you kill an enemy that has your flag, it will stay in place until one of your teammates touch it. When this happens, the flag will teleport back to its spawn point. You can earn special points in CTF mode for capturing flags, returning enemy flags to your flag, and by snatching flags by killing enemies with the flag.