This mod replaces the Tommy Gun with a Duke Nukem Forever styled version of the M4A1.
Based on the M4A1 weapon model by HypoV8 for GunRace, originally from Counter-Strike.

pak8.pak has the custom model
pak9.pak has custom crosshairs

crosshair 1 is the Duke 3D retail crosshair
crosshair 2 is the Duke 3D beta crosshair
crosshair 3 is the Shadow Warrior crosshair