After a few long nights of working on this model (mainly on the texture maps -.-) I've come to a point where I'm happy with it.

Here's the final concept render. 

And this is what it will most likely look like, no touch ups in Photoshop, these are raw renders of the model. [rendered in 3ds Max]

Glad to say that I'm currently working with Digital Coast as a modeler, and I'm working on the Source mod Zombie Survival. I'm currently working on a unique model of the Pack a Punch.

A few pack a punch concepts.