Hey guys, I am still working on the pack of from a piece of paper to a full working in-game weapon but got a bit side tracked by doing 2 tutorials for someone who needed a bit of help with his stand  alone game. You can check them out here

Tools used are:
3D Studio Max 2013 (Paid for or free trial)
Autodesk 3ds Max 2013
PhotoShop(Paid for or free trial)
Adobe Photoshop CS6

Have fun and keep on game designing!