Actually, we've got quite a few military scientists. The main team (for lack of a better term) has one. She's kind of the lead scientist actually. At least in matters of engineering or astrophysics. But I tend to think of them as military. It's the most all-encompassing role. If you're military, even if you're also a scientist, you tend to see things from a military perspective.

As it happens, the colonel (the woman I mentioned above) is Catholic.

The complications that arise generally come when people start stereotyping. I've been called a grunt on more than one occassion. (No matter how many times we try to explain that only Marines are grunts. Airmen are zoomies or flyboys.) And it's common practice to refer to the scientists as geeks. It's usually in good fun, but sometimes people think the stereotypes of those names really do fit, and that's where we run into problems.

Us vs. Them is never a good idea in a close working environment.