Stormborn
Explorer
JPL said:I was thinking the other day about Marvel's Union Jack, a WWI-era masked adventurer who fought vampires and Germans [and the occasional German vampire]. My thoughts turned to Kim Newman's excellent novel "The Bloody Red Baron," a sequel to "Anno Dracula," in which WWI occurs on schedule despite Dracula conquering England decades before.
As soon as I saw the title of the thread I thought of those books! You might also want to check out Arrowsmith from DC (now in TPB I think) as a Great War with Magic setting.
Set late in the War, or in a war that went long, you could fudge a few historical details and use the equipment listed in CoC d20.
Actually a CoC+d20 Past combo would be interesting and would have lots of material both game realted and otherwise to pull from. The very books you mention have some nods to Lovecraft in them (like Herbert West as a front lines field doctor.)