Spawn options for vehicles in warzone?

Just like we can choose to either spawn home base, South, east, north or west armory etc. Why not vehicles, i know especially on A.R.C you can roll out a vehicle and get boarded straight away, and have no choice of the matter since your stuck in the animation. Atleast remove the animation and allow to fire your gun while youre coming out to get rid of the camping spartan in the corner.