1 no (units that have fought (moved in combat) do not get to move in non-combat (except planes). But you can load ground units on a transport, move the TRP somewhere and land the units for a fight (to the death)
2 no
3 not sure i understand your question… tanks capture everything they blitz through. mechs cannot blitz solo through 2 enemy territories.
4 you can land as much as you want, just not scramble.
5 correct. You should have landing places for all your planes in combat move. But, if an AC gets damaged during combat and some planes can’t find a landing place anymore, they are lost.
6 no, but your loaded AC is in zone 6 the planes on it also start from zone 6
7 only subs can’t hit air, i guess