Been playing a bit of BF3 lately, and I've wanted to try a lighting setup like this for a while, so all I really needed to do was fill in the middle.
The outfit is moreso just a quickly done up mix of a few different class outfits from BF3, and the gun is an old model. I did make the pattern texture, and I'm pleased with how it came out.
The background is kinda plain as well, but it fills things in decently enough.
Rendered in Cycles, close to 300 samples. Took about an hour.
Full sized here.
http://tinyurl.com/76mj2zq