Coliseum is a Halo 5: Guardians multiplayer map, set on a Forerunner Warrior-Servant military compound hidden within a Burn. This map is multi-layered and symmetrical, and purpose-built for competitive CTF matches. A small creature can be spotted on Red Base and Blue Base, lifting up a panel. A good way to spot it is to zoom in with a Sniper Rifle as it hides away when you get too close.