Destruction due to critical damage
After a battle or during a retreat, units with an armour less than 50% can be destroyed with a chance proportional to the damaged armour, with debris fallout. The portion can be restored according to the base percentage return.
Queen Victoria, Feeder, and Paranoid give a chance to avoid lost in space and fleet destruction due to critical damage by a percentage equal to 1/4 of the sum of levels for each unit missed.