After hearing some of you guys have a tendency towards the complex sim side of Mechs, have you decided upon the level of complexity of the combat model. Personally I love the idea of having to monitor various stats and use a huge number of buttons just to keep the mech working. I dont think that aim should always be the overriding factor in bouts, being able to control heat in different portions of the mech, monitor the damage of your own and multiple enemy mechs and identify where ammo/weapons are stored on opponents should also matter. You could even have screens with multiple cams on them (until they get blown off) and perhaps designate hotter portions of enemy mechs for missiles to home on, though i'm sure your aware of these possibilities. Did anyone else feel in MW4 (my only mech game) that the assaults got a bit disappointing, I expected controlling a heavier, more hi-tech mech with more weapons would require more skill, when in fact its just light mech fighting in slowmo.
BTW I use a joystick/keyboard combo, the Jstick has 6 buttons in the reach of my right hand, plus a shift and throttle, and then all the other functions can be stuck on the keyboard for my left hand, shame MW4 didnt have enough stuff to put on it... - but its forcefeedback that really makes it real!