I was on my way to get a schematic for a shock bolt from Bilegulch Mine when I noticed Falkreath Imperial camp nearby. I cleared it out and let only the wounded ones to stay alive, because they are not a threat and should have a chance to survive. Then I went to the mine and concluded my mission. After looting some weapons at Bilegulch I decided to head back to the camp because I saw a grind stone at there earlier.
On my way back I thought that what if there's a bear or something eating the wounded ones and that leaded me to think what if some vampires comes to the camp and turns/kills those wounded soldiers who obviously are easy source of blood. Maybe I should just kill them so they can avoid that destiny? But then I realized that it would not happen - Skyrims world isn't interactive enough for that.
I went in the camp incautious and as a part of role playing went in the tent of wounded ones to see if they are still living. Two of them were missing and only one was remaining and there was a lot of blood on the ground everywhere. Then I heard sound behind the tent and I went out to see what's going on. Three vampires attacked to me at there. I still had my smithing gauntlets on and no weapon ready which lead me in very dangerous situation with them. During the furious battle one of the vampires went in the tent and killed the last of the wounded ones when two other vampires were fighting with me.
I was only one who stayed alive but I never found the corpses of the two wounded soldiers. Are they now wandering in the wilderness as vampires? I don't know, but I'm still astonished about the interactivity of the world.