targets in priority
1:batterys
2:power sources
3:hydroponics
4:food stockpiles (must be certain size plus filled to reduce cheating)
there is probably a few other things that irl siegers would go for
1. Power source/Defenses
2. batteries
3. colonists
4. Everything else
Guns/Mortars/Turrets
Power I.E. Generators + Energy Lines
Colonists (you need them to repair the lines)
Batteries/Walls/Food
Distance is also a considering factor.
Also there should be a different approach for Fire Mortars
They target buildings, wood, food stocks, and may hit far but close enough to break open walls during attacks.
Also the siegers won't abandon the Mortars when going in to raid. They will raid if they see 10% of the wall break down or if there are no guns near any walls where they're going in from.
Roofed Turrets aren't targeted if the walls are sealed. Or anything fully covered unless all surface targets have been taken out.
I would actually like the mortars to be more accurate but only if someone has line of sight, a spotter if you will. Would add a neat mechanic to sieges.