Take a look at the power levels on the "Game Objects" page in the
Help section. This should give you a good idea of how many units it will take to destroy another type of unit.
Do they destroy each other?Someone always survives a battle. Every fight is basically a fight to the death.
Do you divide an enemy attack by your armorArmor decreases the attack power of the other unit, but it's much smaller than a straight divide.
(It was in the same space as an airbase, landbase, and turret. Did that matter?).The turret would definitely weaken your missile before it impacted the objects within the sector. (It would also weaken then missile to a lesser extent as it was approaching the sector.)
Does air units get their power divided up between all units/bases in a square?Units/turrets will battle, and then any strength left (if the unit survived) will be done to the bases.