Wade (Entente) and I (Germans) played this, I was able to win a decisive German Victory in the Summer of 1916, the two major deciding factors were isolating 3 Entente Armies in Brussles, placing them out of supply and annihilating them, with a heavy artillery barrage with Poison Gas.
The Entente then tried a desperate gamble to race from Verdun up through Luxembourg to the Dutch Border to try place all the German armies in the west out of supply. It failed as the armies the Entente Used were very weak and Germany was able to pull back sufficient forces from the front and annihilate the unentrenched Entente Armies.
Wade, his wife, Dan, Mike and myself had an enjoyable game of this. Wade ran away with it, with a Raid Heavy Strategy, I think the score was Wade 144, Wade's Wife Hannah 126, Myself 114, Dan 113 and Mike, 78