This is a 2 teams based mod : blue and red. The objective for each team is to score a goal by throwing the ball that is located in the middle of the map to the ennemy base.
You spawn with the gravgun. You can pick up the ball from an ennemy by either kicking him with your crowbar/stunstick or by pushing him when using the gravgun. The ball carrier cannot bunnyhop so you are encouraged to throw the ball to your teammates to go faster.