Suggest ability to use melee weapons on terrain objects, like bushes or walls. Requires a melee weapon mod, but would be helpful in not using ammunition at point blank range to take out a crappy bush.
Suggest ability to treat bushes or similar as possible to walk-through, like doors, except that it destroys them. Possibly use a threshold given by current armor, which would determine the strength of what you can walk through. Powered armor could probably just walk through wooden walls, albiet slowing down in the process.
Also suggest ability to climb or otherwise over low obsticals, like Fences..