This model was cut from HL2 retail sometime after the E3 2004 demos. It replaces the original buggy model. It also contains sounds from the Seafloor E3 demo.
Valve made the model and sounds. Romka ported it from the leak to retail. All I did was zip all the files and uploaded it. The map is named E3 Depot 2003 it is also made by Valve. A link can be found below. The shotgun model and sounds are also made by Valve. A link may be availible somewhere on FPSBanana....
About the F.E.A.R. HUD... Look around on garrysmod.org.
Link for map: