Two Teams. Runners and Checkpoint Keepers.
Runners run to checkpoint to get a point. Whenever one Runner have 3 points, they win.
Keepers kill the runners to get points. Whenever one Keeper have 20 points (kills), they win.
Runners can damage each others when healing and stun or slow down with abilities. Keepers have double the size and health and get an ult every 5 kills.
Play and have fun.