3 questions

[RERomine]

I see how to alter a hex height manually but don't seem to be able to make it work on an existing map. Specifically I'm trying to make a couple of buildings higher than those around them.

Not sure on this one since I don't do in the way of map modifications. I'm sure someone will answer this one.

2nd: what do the different asterisks indicate when you hit an opponents vehicle and cause damage?

It's basically a damage severity meter. The more there are, the more damage you did. I'm not sure if there is anything specific like 4 asterisks if you knock out the main gun. You might get the same number if you kill 2 crewmen and knock out two machineguns. I just know when I see a lot after one of my shots, I got a good lick in. If you see six and they are still alive, you've probably pulled all their teeth.

3rd: how do you attack a vehicle in an adjacent hex with an infantry unit without "ASSAULT"ing it? i.e. just use a satchel charge or panzerfaust or whatever.

Not in a way you can control that I know of. If I assault and fail, I rally enough until the weapon I want to use has shots. Then I attack again. Usually, it will cycle through and fire all active weapons. If you rally the unit to suppression of 1, they will probably assault again.