There is a campaign mode: In this mode you embody a secret agent. This mode has several paths. Even if the map follows the same story every time, you have multiple ways to acheive it. Besides, there are many different endings. The Alpha Team and the The Bravo Team have both special objectives.
The other mode is the versus one: You can basically fight each other in many arenas. There are also different game mode :
-Fight: You are in an arena fighting your opponents, either in FFA or by Team. Some items will spawn on the map that you can equip.
-Capture the Flag: You have to capture the flag of your ennemis and bring it back to your base.
-Zombies: Waves of zombies will attack you. You will have to survive as long as possible.
-Infestation: A zombie will be chosen randomly in the team. He will have to kill the other players. When one of the players is killed he turned himself as a zombie.
-Assassin: You will have a lot of villagers around you like you. You will have to kill the other players, avoiding the citizens. If you kill a citizen, you will be reveal to your ennemis.