Getting into trouble with the Nazis really won't be a problem as long as you have a trusty Particle Cannon lying around. The new trailer for Wolfenstein (PC, PS3, Xbox 360) boasts its new toy and how much easier your Wolfenstein life would be if you're packing one.
It sure makes you look like a Ghostbuster, yes? Only you're not blasting ghosts, well, they're not ghosts yet. But a good dose of green out of that nozzle would quickly solve that problem.
Here's another vid: