Siege Tank Problems

I am trying to make my own unit modified off the siege tank - the problem, is that for some reason it will NOT attack air units... I don't know what happened, but even with Barrage it doesn't attack air units. Is there something I'm overlooking o_O

Maybe if you posted any of the information here, we could tell.

I don't know what information to post... if I select targets allowed for the siege tanks attack to air, it will still say "cannot attack air units" -_-

In the Object Editor, look under "Target types allowed" and make sure air is checked.

never mind, I got it - but I still have another problem: how do you enable attacks on units only with the battle station peon burrow ability? When I place it on units, the units can load onto it - but the main unit can still attack whether or not the units are loaded or not. Trying to make it so the unit only fires when the units are loaded into it like the peon burrow.

it was, for some reason the projectile art I was using was forbidding it from attacking air, weird huh? Once I changed it, it worked.