Commander's abilities would rule on the Death Star! It'd go something like:

Wedge [in trench]: Almost there...
[Targetting computer counts down to zero and locks on. Wedge fires both torpedoes]
Wedge: Weapons away (or whatever it is he says )!
Yavin IV: Did it go in?!
Wedge: Negative, I repeat negative, it did not go in this time either. The exhaust port's still plugged shut by the supply crates and Jeeps the Imps keep spamming down it.
Yavin IV: Curses... we got any fighters left?
Wedge: Plenty. The Imps keep trying to grief, but the platform we spawn from is above the spawn altitude of their artillery shells!
Yavin IV: LOL!
Luke: OK, then, I'll give it a shot. Wedge, you're the commander, just keep spamming the exhaust port with artillery until we win this game.

I doubt very much they would bombard the planet with Vader on it.

But they never actually did bombard Hoth. By the time the shield was down, the landing was already underway and Echo Base pretty much captured. If the 'Destroyers did fire on the surface, it's not shown in the movies.

I guess you could say, they didn't but they could have.

But yes, it should be map-specific and simply left out in most cases. Meaning that there should be no artillery on Hoth, for example, as we know there was no artillery in action there.

I must contradict you on that, according to lore, the star destroyers in orbit around Hoth were waiting for the rebels' shield to be brought down so they could begin bombarding the planet as was common practice of the imperial navy.

That's Grrrrrrrrave digging!

But yes, it should be map-specific and simply left out in most cases. Meaning that there should be no artillery on Hoth, for example, as we know there was no artillery in action there.

like lets say in one battle the imps have control of space (tatooine mabey?) so they get airstrikes
meanwhile rebels dont have any spaceships nad instead they use ground artilery?

would be interesting....