So, after you get to level 31, it just stops. You don’t gain anymore skill points, and thus, if you have a “chink” in your armor, (if I may borrow the lquoquialism) Such as lower stamina/ stamina recharge, Higher visibility than you’d like, etc, but your at level 31, you pretty much just have to live with it.
I think this should be changed because it limits growth in the game, and you have less in-game goals to accomplish. So you pretty much just sit there and chill until the next DLC, but even then, although you have goals and more storyline…you still can’t level up.