I'll give you three reasons the game will stink.
1. Wild
2. Bill
3. Stealey
Nothing else matters.
As far as doing a WWI simulation, HTC already did that, before they left the previous company. It was called "Dawn of Aces" (DoA), and it was a great game. For whatever reason development on it stopped and the game has all but died. It has a small but loyal following. But ah... I remember many a night spent on that game.