Raketten vet3 gives guaranteed penetration and +25% damage for the first shot out of camouflage, so I assume the effects are the same.
I forget if it's timed like most others or if it's literally only the first shot, but if it's the former, it shouldn't be a huge problem in that situation anyway, but again, not the point of the thread. The issue with paratroopers is that the bonus will almost never be applied since they always turn and reveal themselves. They are on a timer for their ambush bonus (IIRC) so carbines firing first isn't a problem for them though.
Are you sure that it is because the model turned and not received damage?
Keep in mind that certain weapons BARs/ST44 can hit cloaked entities if there are near their intended target.
Yes, I'm sure. I think you can see it if you give them a move order with a facing order (I'm talking about clicking, holding, and dragging to make them move and then face), as they will move to the point and then turn, and when the models are turning they break camouflage. I think it's just a problem with the camouflage requiring them to be perfectly still. I almost put this in bugs.
I do know about how automatic weapons reveal camouflaged units in that fashion. I use commandos literally every game I play with ukf, so I think I have a decent handle on most of the camouflage mechanics.