Technically, any weapon held by two hands should be affected by the transition to a one hand hold... even a pistol, though negligible. This is why you hold it in two hands in optimal conditions. The second hand enhances stability during and after the shot. Talk about larger weapons...

It depends on the size of the weapon. You can open a door with another hand on a pistol's trigger without accuracy or readiness being compromised. On the other hand, a larger weapon would have you either lower it down or sway it to the side in order to get to the door knob. With only one hand on the trigger of this heavy weapon, its balance/aim and overall readiness would definitely be compromised.

Hmm, well I don't care about cosmesis or how it looks like animation-wise. This affects every breach and entry. If your weapon was ready to fire as you telekinetically opened any door, the outcome of the gun battle that would ensue would change dramatically. This is why in real-life you stack up next to the door, open, flash/bang/stun and then clear. You can't fire a heavy weapon with just one hand, can you. And if you can, the accuracy wouldn't be the same as if it were handled by two hands.

I agree. What's the point of having sunglasses in a simulation if they don't serve any purpose. If the realistic sun is bothering the player, the player should put on glasses.