Sunjata Keita- you may need some more experience with Great War era fighting. There were a LOT of battles fought partially or fully out of the trenches. The Russian front, for example, was only fought about half the time in trenches, and there was much more mobility. Only on the isolated French-Belgian front was there the almost-fully static trench battles people usually associate with the Great War, and even then there were constant, almost daily skirmishes between the two sides.

Also- a question for the modders: the Great War was one of the most bloddy, horrific wars in history... so how are you gonna show that? Or is it impossible?