Better still, the Nazi's in Outpost are actually relevant to the story: a mercenary outfit is hired to go into an abandoned and neglected WWII bunker with no questions asked, but when members start disappearing and Nazis start reappearing, a pretty cool Hitler occult experiment comes into the light. It may not be the best movie ever (it's kind of slow for the first 40 or so minutes), but it's got a really fun cast and is, overall, pretty badass; which is a quality I demand from all things Nazi zombie.
So I'm happy to hear that Mr. Barker has a sequel in the works called Outpost II: Black Sun. There's no word on how it'll relate specifically to the first film (cast or character wise), but Shock til You Drop does have a lengthy plot description. An excerpt follows:
"Flash forward to present day, and a NATO task force is hurriedly deployed to Eastern Europe, where a sinister enemy appears to be mercilessly killing everything in its path. But this is no ordinary foe.
Only Helena, a gutsy investigator on the trail of notorious war-criminal Klausener, accepts the reality of what they are facing a battalion of Nazi Storm-Troopers, a veritable zombie army on the march."
No release date has been announced, but considering I'm a fan of the first Outpost, I'll be keeping my out for more details on Black Sun.