S.T.A.L.K.E.R., from developer GSC-Game World and publisher THQ, has garnered much attention before it was released. It is no surprise after its release it's still deep in controversy. However, the controversy now isn't about if the game will or will not be released, but what it used to be released.
The good folks over at MapCore have posted the first evidence of such copyright intrusions. As you can see from the photos to the right and over at Shacknews, the evidence is pretty damning. A quick Google search will show many other instances being found.
While ripping art from other games can trace back to Duke Nukem II, there are many cases of texture packs being shared or just certain textures being purchased. That does not seem to be the case here as id Software CEO Todd Hollshead was quoted saying:
I've seen a post on a web forum that claims DOOM3 assets are used in another game, but we've been working hard on Enemy Territory: Quake Wars as well as our own internal project and have not had the time to fully investigate or otherwise verify that the claim is true. Only from what I've seen on the Web, it's concerning. However, it may turn out to be nothing. Nevertheless, it would be improper to make any decision about a course of action until we find out whether the claim is true, and what assets from DOOM3, if any, have potentially been used.
GSC-Game World is located in the Ukraine (Ukrainian Copyright laws), which according to the International Intellectual Property Alliance (IIPA), ranks #6 per capita in Copyright piracy as well as hosting the worlds number one spammer, Alex Blood. GSC-Game World is Ukraine’s largest computer games producer.