Early censored Models
From Valve Cut Content
When Half-life was released in Germany it was censored. But did you know that the Alpha had a different way of approaching censorship?
Scientists
The scientists in some German pre-release magazines, they resemble robots with red and white coloration.
Security Guards
The security personnel have a much more robotic look to them. They are colored a navy blue.
Zombies
The Zombies share the same color scheme as the scientists, difference being the the obvious zombie features.
H.E.C.U
The H.E.C.U had a much more different look to them compared to their retail counterparts. They resembled humans a lot more closely, and had a different gun model.
Trivia
An interesting thing to note about the scientists and zombies is that their UV mapping seems to be broken.