[Gold & Appel Inc]

I think WWII w/ Werewolf PCs together is a fine idea for a first campaign, assuming all your players will be interested in those two subjects. I even think it would play out better with "Classic Horror" werewolves than with a Werewolf: the Apocalypse setting conversion. The PCs can easily fit the powers into a normal point value for a cinematic game, but with Regeneration (Regular; Not vs Silver) on the Human form instead of the Wolf form. That way, they can play out normal GURPS combat, see how fast a rifle wound takes one of them down, and grow to appreciate non-D&D tactics, but the victim is back on his feet the next day. The Army supports this by putting them in their own Special Forces unit, with a squad of handlers to make sure they don't run amok in the wrong place every Full Moon. The GM supports this by drawing up a house werewolf template that does exactly what you want and letting them build their own human stats to avoid confusion.