Reduce grenades a little
Remove the aggression cap
Reassign alien aggression values for new aggression calculation.
Fix explosion evaluation - use armor and battleExplosionHeight option.
Grenades: care less about damaging our base/units and more about hurting XCom
Optimize quick checks before slow calculations
Do not change targets unless necessary.
Account for armor when picking targets.
Smooth all stairstep functions
Account for Accuracy (and AutoShot's 3 attacks) when choosing attack method.