Jinro

I figured that when you set "immortality" on and "use these settings for all missions" in options, that I would be immortal, but apparently not. In the general options, I set immortality on, and set "use these settings for all missions" on. Tried A10 mission "firing range" and got shot down. Then I tried opening the mission in the ME, set immortality to "enforce" and also selected "value". Tried it again. Still got shot down. What gives?