I have the CE, skitso's map pack, femonauts, tiles. Playing on Veteran.
First alien base assault:
I had 50% of my men shot so I decided to destroy the reactor just in case. So I did. And that case happened - I did loosa all my men, the Charlie was destroyed, BUT the base survived.
Unfortunately I was so sad and pissed at the game (and myself for foolish decisions) that I didn't keep the save. So - just sayin. I will try and reproduce and take a save.