Interplay has released the third concept image from Project V13. It's called "Survivor." Check it out on the Interplay forums. I'm having issues with DAC's gallery at the moment, so you'll have to wait for it to appear there.
Chris Taylor also let us know a bit about the image:
The gun is undefined. Doesn't look like a plasma gun to me. Maybe it's chemical sprayer or something. This piece of art isn't part of the weapon/armor conceptualizing stage. Just part of a series looking at characters in general.