One of the most significant new additions is five previously unreleased chapters for the single-player campaign. Gears' five acts from the Xbox 360 story (with each act comprising of roughly five chapters) provided about ten to fifteen hours of game play (depending on the skill of the player and level of difficulty). It was a fairly average length, although perhaps slightly on the short side for more accomplished gamers, so this additional act on the PC game now increases the longevity of the title to a more substantial level, providing an extra 2 or 3 hours of play (again, depending on skill and difficulty).

Central to this new act is the presence of a very nasty beastie (even by Gears proportions) called the Brumak. Similar in appearance to a large carnivorous dinosaur, this member of the Locust Horde is piloted by a Locust Drone and has cannons/rockets attached to its arms and back. In short, it's not a pretty sight. The main objective throughout the act is to re-attach some downed power lines. This of course means plowing through area after area of tricky set-pieces filled with Drones, Boomers, Theron Guards, Wretches, a couple of Seeders and their accompanying Nemacysts. In other words, this is a level where the difficulty has been ramped up quite a bit from the first couple of acts and, seeing as it is essentially the fifth act (sandwiched between the Fenix mansion and train acts), this all fits in nicely.