The well-known plastic explosive. It cannot be spawned in-game via console commands, however, a fully-animated viewmodel, a worldmodel and a "planted" model exist in the files. The C4 is untextured.
The MEU/SOC 1911, also known as the M45, is an unused pistol that can only be used via the console command give_weapon 1911. It may have been used by the U.S. faction. The M45 holds 7+1 rounds and reuses animations from the Beretta M9.
test_penetration is a simple test map for testing the mod's bullet penetration system. It features various firing ranges for different types of materials - wood, stone, metal, and concrete. The map also has a crate, a Humvee, a wooden barricade, and a reskinned Half-Life 2 car. test_penetration will spam errors in the console about a non-existent IMC.
These models were meant to be used in the unreleased map Opsada. The church and gravestone models are textured with a black-and-white wireframe placeholder texture.
There is also a test model named sib_deletemebecauseimatest.mdl with a rather self-explanatory name, however, it crashes the Model Viewer when attempting to load it.
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