Here are some Halo 3 weapons, which I have modeled from scratch. (Normal render and a wireframe under)
Halo 3 Spiker
Halo 3 Magnum
Halo 3 Sniper Rifle
And a shotgun, (not Halo related)
I have also started to texture one of them, btw this is my first texture :D
I plan on modeling...