[Oberon]

 

Sadly with snipers, it's a common tactic, as old as the hills, to wound one soldier deliberately in order to entice the others out to attempt a rescue, then you take them out one by one.
Unfortunately until the sniper is put down, the zone just isn't safe enough to attempt a rescue.

Agreed on the friendly fire, but that just highlights that in order to protect your platoon you have to make unpopular decisions, I also held fire on that incident, which could very well have gotten myself and what was left of my section killed.

I think in regards to doing it twice, the best thing to do is to take the first score as your final score, because the second time around you know what it's looking for. You might want to wrap some of that text in spoilers too, for those who haven't done it yet.