I somehow managed to injure nearly ALL of my 20 soldiers and wasn't paying attention to the numbers actually fit for combat. I ended up having to do a mid game terror mission with just four men, two of whom were shitty rookies. I barely survived with everyone intact, but two people were injured, one of whom was my surviving high ranking assault guy and the other a crap rookie. It was five days till the end of the month and still no money for new guys, so I just had to hold out till then. This was an iron man game, so this was an incredibly precarious situation.
Then one day before the new month I got a council escort mission.
I had exactly two people left in service: my pro sniper woman who is at max rank and survived every single mission so far and is a total monster on the field, and a single shit sniper rookie woman. That was it. Defeat was certain, but I desperately needed the money so decided to do it anyway.
Straight away I got flanked by two thin men, one of whom nearly crit killed my elite sniper on the second turn. I'd given the crap sniper a medkit so used that to heal her up. It was clear this wasn't going to work with two characters who need a whole turn to set up, so I just used the crap sniper as bait while Ms pro cleaned up. Crap sniper proceeded to die two minutes later. I'd have to use my most precious and most vulnerable unit in the entire game alone for the entire mission.
I worked through and got to the hostage running and gunning with a plasma pistol (someone was asking about the point of the sniper pistol perk; this is it, it basically turns a sniper into a fast moving deadly accurate regular soldier). The game dumped in more thin men so I just decided to run past their flanks at the edge of the level to avoid them. Killed a couple on the way, and got to the evac point. At this point Ms pro sniper had been shot to fuck and had three health left. Then just as I got to the evac point she got hit by thin man poison. It was ok though, the hostage escaped! Only of course that wasn't the end of the mission. I still had to kill the remaining aliens. I reasoned that it would be ok to abort the mission now, as the civilian was safe, but the message box made it clear I was going to fail If I didn't take out the remaining enemies as well.
She had three health left, and was poisoned, so she only had three turns left to live.
I rushed towards the nearest known enemy. It was one I saw go into overwatch previously. He was STILL in overwatch 10 turns later, and immediately opened fire on her completely in the open. She was doomed. He missed! Two health left and standing completely out of cover, I just used the rest of her turn to return fire with her plasma pistol (oddly she had a 100% hit rate even though he was miles away and in cover) and ended the mission, the very last member of XCom still standing. The whole thing was pretty jaw dropping (she single handedly killed about 12 aliens) and I even got the Valkyrie achievement to boot.