Overwatch is making big changes to its battle pass as part of Season 4, with a new multi-track system that even gives players an option to swap out and replace a skin they don’t want. As explained in a new “Director’s Take” blog post by Overwatch product director Chris McCabe, Blizzard said it recognizes that due to Overwatch’s ever-expanding roster of 50+ heroes, not every battle pass will have rewards for the heroes a particular player is most excited about.…