OK new vanguard game mode. Its cooperative not competitive. 6 players.6 towers. Each player stands on an raised platform that has cover you can duck behind and several caches of ammo. Enemies will shoot you back. These platforms are scattered throughout the map. There will be 12 waves of enemies that will path through the level and pass each platform. At the far end of the map is something with limited hit points that must survive or everyone looses. Perhaps its the city gate. Enemies will path towards this object. Players can move between platforms. Each enemy wave gets progressively more difficult. Perhaps instead of enemies pathing it is civilians or supply convoys that path towards the city and guardians are protecting them as they travel.