The new DLC Fantastic 4: Shadow of Doom from Marvel Ultimate Alliance 3: The Black Order is now available, in it we can find characters such as Mr. Fantastic, Invisible Woman, Human Torch, The Thing and Dr. Doom, and also, a great number of alternate outfits for the Avengers, Guardians of the Galaxy, The Defenders and X-Men. Despite the fact that these are many novelties, there seems to be something else that players can find in this third DLC.
Recently, players who have been testing the new DLC have discovered that it not only contains the Fantastic Four and Dr. Doom, but also that there is a completely secret new unlockable character and several have had the opportunity to get it. This is Thanos (Infinity), a different variant than the normal one that contains the Infinity gauntlet with the 6 infinity gems and new movements
As you can see in the image, Thanos (Infinity) has special abilities where he uses the Infinity Gauntlet, such as Chronal: Disruption, No Escape, Soul Siphon, and Infinity Power. This sixth character is achieved once you complete the entire Fantastic 4: Shadow of Doom DLC.