This is a feature request that may already be in the works but I've noticed this as a drawback in the current version of the game when it comes to entering and exiting vehicles.

The current system causes animation issues when multiple players are entering or exiting a vehicle at the same time, (truck or heli).

We would love to see a door system similar to DayZ where the door can open independently from entering or exiting the vehicle.
For example with either Helicopter it would be nice to open the door in one animation and have all players enter or exit without the door animation looking jank and players basically get in and out through what appears to be a closed door. Instead the door just stays open until a player closes it, players cant get in or out without opening the door first. Same can be true for ground vehicles.
I think this will also improve the remove casualty feature and "Get in gunner" feature where you have to be just at the right spot to directly enter the gunner position when looking through a closed door.

I hope this all makes sense.
Thank you.