@shyrkonflex: I was merely pointing out, that if the Crysis Engine "only being able to shoot at the center of the screen" is the only restriction, then it could be done by rotating the camera by mouse movement.
No, you'd have to have movable weapon-slots (like arms or turrets) which are not static
As pointed out by Cloudburst, Weapons on current Mechs already do rotate independently to some degree.
aswell as a "smooth" reticule that hinks behind the acutal cursor for it to feel right
Why would we need that?
and thats no doable.
That's certainly doable. We even had that in 0.4.8 (or was it 7?)

In theory you could probably do it "your way", but it would look redic because shots would not exit the weapons in the appropriate angle.
The shots of the weapons not exiting in the appropriate angle is a 'problem' that all MechWarrior games share. Even MechWarrior 3, since not all weapons on the Mech can move independently (or ar just textured holes on the Mech) and you can move the reticule faster than the arms can move.
In principle we also have this problem in MWLL. Weapons converge to the point where you aim, however, the arms only ever move up and down, but never rotate "inside". You never see this effect however, because there is a discrepancy between the shots you see from other players and how they see their shots. From their point of view their weapons converge and hit targets while from your view every shot of every weapon follows the aim of the barrel and not the aim of the player.