There needs to be a different leveling system for singleplayer because of people who don’t have good WiFi or just don’t like playing an obsessive amount of multiplayer matches. This could probably be solved by two different methods, a separate level system entirely, or just no level system at all. This applies not only to SP Challenges, but also the offline bots coming out sometime in the next two months. There should be no multiplayer xp gain from any singleplayer mode, but a separate singleplayer xp would be fair and reasonable. It could also make sense that at least in the case of offline bots, there would be no level system, and that it be a sort of sandbox mode where you can try out everything, but I personally like the leveling system instead. The higher the level, the better Jasons, kills (Including SP exclusives), etc. This would be good to implement so that SP Challenges have a sort of progression towards a better playing experience. Whatever you choose, I doubt that the multiplayer xp system affecting singleplayer would be the best way to go.