Welcome to MC news! Today on Minecraft Wiki I found a new gamemode called Capture The Flag
Rules:
Capture the flag is a game where there are two flags and each side tries to capture/take the other team's flag and return it to their own flag or base. Usually you win when one team captures the other teams flag a few times or when there is a time limit reached, the most flags captured wins.
History:

Capture the Flag was speculated to be implemented in the full release of Minecraft, but wasn't.[1] Notch also mentioned that it may be added later.[1]
As said in Minecon,[2] Capture the Flag will first be available for the Xbox 360 Edition before the PC version or Pocket Edition.
The unofficial editions of Capture the Flag have developed diverse ideas of the server type itself. Some servers have a default kit that you can't change, and some have multiple kits for different skills in combat. Some keep a record of kills, deaths, and captures. Some you have to physically destroy a block considered the flag, while others have the flags sitting as a dropped item on a pedestal that never disappears, which a person on the opposing team must pick up. But one aspect that is shared in almost all of the CTF servers is that you must take the flag back to your own team's flag or base to have it captured. Other than that, there is the aspect of maps. Some servers only have one map, while others have multiple maps that you can choose from through a lobby with portals, or just randomly selected after a match ends.