Himmler's SS is the fourth mod made by Luke Strauman. It was released on January 14, 2002. Though it featured quite a number of source code changes, it was released just after Spear Resurrection, by which time the modding community had changed gears completely.
Outside atmosphere is not implemented, but is felt via the creative graphic changes. None of the guards are multi-directional, though, and only face you from the front.
A multitude of extra weapons are featured, including missile launcher, flamethrower and shotgun.
14 levels can be played over various episodes, as the EXE is based on registered Wolfenstein.