Horde 3.0 is Gears of War 4's new incarnation of Horde. Horde 3.0 introduces several new gameplay elements such as skill and ability progression. Horde 3.0 marks the return of co-op play up to five players, where players fend off 50 waves of enemies. A boss wave is triggered every 10 waves just like Gears of War 3's Horde mode. Unlike Horde 2.0, players can utilize a Fabricator, which allows for building fortifications, defenses, and weapons anywhere on the map at any time instead of building in static locations near a command post's vicinity.