Both teams spawn with Energy Swords and have to run into the enemy castle and be able to grab the flag and bring it back to their castle. There are 2 mongooses, 1 Gravity Hammer, and 2 Plasma Grenades in each castle as well as a Man Cannon at the very top of each castle, you can use them to get around the map faster. It sounds like a simple game but you have to be using teamwork in order to win otherwise you might not be able to ever grab the flag.