Best answer: While Marching Fire does some great things, it's sadly not worth its price of $30 for the amount of content it brings. You should get it eventually when it's on sale at a lower price, however.
Xbox Store: For Honor: Marching Fire ($30)
The Marching Fire expansion for Ubisoft's unique medieval fighting game, For Honor, adds a brand new player-versus-environment mode (PvE) called Arcade, as well as four new heroes from a new faction into the game. However, since none of the heroes are exclusive to the expansion and will eventually be free for everyone, you're only paying for early access to them, which makes the amount of content you get for $30 feel lackluster overall.
Full story from the WindowsCentral blog...