I'm not sure if anyone has said this or thought of this, but I think that the animations with the vehicles will be like the ones in Far Cry. The developers of Squad want an open and fluid game unlike Arma which has animations and menus to go through. I was thinking of how you have to use the scroll wheel just to get up a ladder in Arma but in Squad you don't. You also have to get in vehicles with a menu in Arma, so I'm hoping you don't in Squad. It'd look pretty stupid if the enemy was aiming a rocket at the HMMWV and everyone just popped out real quick and they were just standing there facing straight in the opposite direction of the truck. It wouldn't ruin the game if it was like Arma, but it would spoil the immersion.