Yes, they’ve both been done.
Driving through a school just requires the patient of making a very long and redundant vehicle with controls at the back and multiple axles. There are also some very useful exploits that make it less difficult.
Getting a tank drone to run out of HEAT rounds can be done at least a couple of different ways, but the main thing is to not try to do it in one session - feel free to come back later, it will still be there. It’s very important to have means of escape (manhole is can be a good one).