OK, I've done this at least 20 times. Got the mission from town, took everyone out, cant get in to free hostage. Made sure noone escaped, fired RPGs at door, nothing. Searched dead for keys, searched around building and camp for keys, Tried going on mission before getting mission. Nothing. Cant get any new missions. Is this a glitch or am I missing something?

I am having issues on the same level, however I was able to save the guy. He is sitting in the bar, but it still says that I need to complete that mission and I cannot take any other missions.

SO FRUSTRATING! the guy is saved, I can see him, but no matter how many times I kill those guys, there is no resolution and I am going insane.

Anyone have an idea that doesn't include losing hours of work to go back to a previous save(I neglected to save in a differnet slot.

this happened to me before, i just think its people running from the fight, they run for miles unless you chatch up.
Iv even see them running if you get in a good postion and sniper a few you sometimes see people running, same with save houses and ordinary missions