I had a battle to save a heaven. Things weren’t doing well because already had lost 2 of my troops, the smoke screens were pretty bad so quit to replay the battle today. (image bellow is just before I leave the battle to show to a friend how the AI operates some time).
Logged today pressed the continue button and presented with the successful completion of the mission with the stuff of the dead members as reward. Regardless if I left the mission with over 8 enemies hitting me hard and never completed it.
I have a copy of the Autosave.