Rifts is a pen and paper RPG by Palladium Books. I don't know much about it, but the Coalition States appears to be a large fascist anti-magic faction. Their ground soldiers are called Deadboys.

While the concept of "Storm troopers meets skeletons and a few spikes" isn't groundbreaking, I haven't really seen it used anywhere else. Sure, there has probably been a lot of gritty, dark, skull faced character designs used in games. The Deadboys however feature a quite clean design, and are organized into large armies. At any rate, I've always been a sucker for both skeletons and high contrast color schemes.

The last image (to the right if you have a wide screen monitor) have two pinups which are pretty close to the original designs. I've included them to provide a reference point.

- Byline - Arne Niklas Jansson, 2008 - Subpage of AndroidArts.com