hmm... just a thought, will the cockpit be lit when the mech is active and dark when shutdown? also (assuming u can get in and out of mechs at will) u can create some nice traps for elementals that way, imagine...
Your sneaking threw the forest in ur power suite when u come across an aperantly abandoned mech. seeing this as ur chance for a free mech u rush forward. suddenly the monster roars to life! u try to make a desperate jump for freedom but its to late, u hear the familiar sound of a missile lock-on,then, silence.