Slitherine

It would be nice if there would be a mode/option where units receive permanent damage. For example, if your tactical space marine squad has 5 members and loses 1, it can never replenish that lost marine, so the squad will remain at 4 marines and it can heal to 12hp maximum instead of 15hp (which was the hp the squad had with 5 members).

Or, rather, like there is costly creation of units, you mean that reinforcement should cost too, moreover that they are not made at a base building, so needing advanced logistic.