a french member (Cyril Leroy alias Sir Erickson) has made a game mat representing the Verdun area before the great battle in 1916.
full size is 82 x 39 inches (210 x 100 cm).
These mats are supposed to be edited by Ares.
https://www.wingsofwar.org/forums/showthread.php?9641-a-game-mat-made-by-a-member