I need to add animations to the BootCamp Demo

I need to add more animations to the Soldier character in the BootCamp Demo. Is this possible? I'm using Blender. I know the Soldier is an FBX, and Blender doesn't import FBXs, but maybe there's a script I don't know about? Also, would the skeleton still be functional when I bring it into Blender, that way I can animate using the same skeleton and make more animations for him? IF that doesn't work, maybe I can add a control skeleton to it's current set of bones, and somehow export just it's own skeleton. Or am I going to have to re-rig him, and redo all the animations myself along with my custom ones? Also, just for reference, does anyone know which program he was made in?