The pilot skill tree really needs a revamp. Something like a point system similar to LoL's mastery tree would work (I think Hawken actually did something like it), or at the very least add drawbacks or limitations to using all of the pilot skills (pick and choose, instead of just using everything because there's no point not to).
EDIT: If anything, it should follow a concept similar to the mech quirks, which give benefits to certain setups and dissuade you from using mechs in ways they weren't meant for
Edited by Fate 6, 31 May 2013 - 02:58 PM.