If you're the type of player who thrives on chaos and enjoys the rush of clutch wins, C4SH is built for you. He turns combat into Borderlands 4 Boosting a gamble, and when luck is on your side, the results are spectacular.   How to Unlock C4SH in Borderlands 4   C4SH isn't part of the base Borderlands 4 roster. To play him, you'll need to access the DLC he comes bundled...