The first build we look at is the way people would conventionally play Zer0: close-ranged and aggressive. It will ask you to input your age, do that, and once you have gone past that age restriction window, try to open the build again it will work this time.įor more help on Borderlands 2 builds, read our Gunzerker, Commando and Siren Builds Guide. If the Skill Builder doesn’t load the build for you correctly, open it separately and try to open a Skill Tree of any character. Note that though open to change, these builds tend to work best in co-op play. To play him efficiently, we’ve set up a few Borderlands 2 Assassin Zer0 Builds for you to look at here. When the class revelations of Borderlands 2 started to roll out way back last year, it wasn’t unnatural to get overly excited about Zer0, the mysterious but ultra-cool cyber-ninja Assassin, who has a thing for cutting, deceiving, and head-shooting any threat he finds.