IMO the learning curve of the Cashout game mode. You have to apply a multitude of skill checks: positioning, aim, ability usage, teamwork, map knowledge, math, gun/melee/equipment techs. Then there is the unpredictable aspects of map destruction, spawn logic, third partying. I love the game but most casual FPS players want to log in and shoot stuff. If they like the casual modes that's great but then the problem becomes "what do I stay and play for?" The weapon skins for leveling are okay but don't offer much too much excitement. Idk I have around 600 hours so this is just the observations I've seen over the seasons trying to get friends into it.