if one single guy of the tank crew die, there’s a “free” sit to enter. AI can also enter in the tank, but only if ordered.
now, it’s a cool feature. but the problem with it, it’s that sometimes questionable people with some questionable ideas decide to take the controll of the tank and do stupid things with it. so if you are going to enter a tank, be pleased to ask in chat if the owner’s tank it’s ok with you using it, and trying to collaborate.
happened to me once.
the tank crew left the tank due to the damage, i fixed it, but the owner was preatty much dead. so i decided to take controll of the tank with my crew, and we managed to capture a few points with it.