Cooperative filter in main menu tells that u can filter even 25+ lvls
Don't forget about multi-classing u can be like 10/5/5/5 in diffrent classes.
Hope they don't crash the game totally... more than now
5e multi-classing is a little different than the bg2 3.5 era.
A multi-class 10/1 needs the same amount of experience as an level 11 character.
