Agree that The Sword and the Flame is very adaptible, almost always fun, and many players are familiar with those rules. Lots of firepower in WW1 though, so TSATF needs a little bit of adjustment. Also, when playing with a large number of players cannot give a move or shoot card to every unit on the board or the game will slow down too much. Better to give an activation card to groups of units or to each player when playing with a lot of players.