as OP as it is, my strategy for rollers is to back up and shoot or throw 2 bombs then YOLO it(which suprisingly works, a lot) or get away throw in a "come on" if theres more than one roller btw i dont have the game, BUT im pretty good, no lie, and my last tip is to try to get the high ground against a roller, the roller will be completely defenseless with their main weapon, so there gonna bomb you