With the release of the new Mayhem Clash today, I was excited to try out the new mode and was having a lot of fun while playing it, but after winning and checking my Grimoire progress for Clash, which is one I've been slowly working on for a while now, and saw that it did not count for the Clash Grimoire for wins. This is somewhat disheartening as Wins in a playlist is already difficult when working a lot and not having a fireteam with which to play. This is also counter to how the Inferno playlists work, which do count for Grimoire for the Base Playlists. Is this by design, an overight, or because of the Preview this week? Hard to say, but if Mayhem did count for Base Playlists Grimoire, there would be plenty more players going for it in that playlist over the Base Playlists when trying to achieve Grimoire. TL;DR Mayhem Playlists aren't counting for Grimoire for Base Playlists, which is inconsistent with Inferno Playlists. Which with it being a new mode rolling out, may need to be fixed. Thanks UPDATE: With the new Grimoire added, Mayhem doesn't have a new set of Wins attached to is, so there is no reason for it not to count.