In the first combat mission in the ArmA 2 main campaign (Mission 2, "Into the Storm") you can rescue Valentina Galkina from getting abused by some OpFor soldiers in a house in Pusta (that is unless you totally miss what's going on in one of the houses). She re-appears in Mission 7, "Manhattan", but so far (at least for me) only as a corpse, with some local policemen on the crime scene explaining that she was caught by a bunch of Chedaki militias and executed on the spot.
Is there a way to rescue her a second time?
Best Answer
This guide seems to imply that you can.
Relevant part here:
During that meeting, if you shoot out the tires to her car, then she won't be killed later by the bad guys.
If you did rescue her the first time, and she was killed, then you may have experienced a glitch.