If i could create a poll i would, but i cant so here we go.
Get rid of hide. Its xp progression is totally ridiculous, when you do get to 100 its ridiculously OP. I can be fighting a guy toe to toe only for him to instantly disappear in front of my eyes.
Take it out altogether, let us crawl in prone, creep around or whatever. Allow that type of movement to create less noise with skill points maybe. But just get rid of hide.
Oh locking or reducing camera pan may help too but i feel thats a more contentious issue.