Pretty much the opposite of "Presentation of a Rich Set of Skills". Make it through a level with only using a gun. It is a little easier to do this one in terms of difficulty, but if you have been playing this game for a while, it gets really hard not to activate an ability or use melee. Its a muscle reflex after a while, so it does get difficult doing this once you have spent longer amounts of time playing the game. The requirements are simple however, you just need to be careful with your reflexes.
In solo play, complete a level without using your Abilities, including rush and melee