If there are a lot of people around centering on the location, and I am a unit not made for close quarter combat against mines and remote C4 being thrown at me, I will take their vehicle, drive off, ditch it away from their building and try and help.

Too many times I have only gotten to the building to only be blown up by mines or been run over by one of the people getting back in their vehicle just to run over anyone trying to get in the door.

It depends on the situation. You wouldn't send a sniper in for close combat against mines and remote C4, instead it would be better to let others take care of the situation and keep the vehicle out of the hands of any returning Hotwires.