Matt Stuart: "Avengers ... to Tony Stark building his first suit in 2008's "Iron Man," which kicked off the entire MCU. One of the main plot points of "Endgame" is time travel.

Thanks to its live service nature, many Marvel's Avengers fans continue to explore the action-packed levels as new versions of their favorite characters, and a free Iron Man suit is set to drop.

In Captain America: The Winter Soldier, Steve Rogers wore his "Stealth Suit" from the comics before donning his old WWII gear. 2015's Avengers: Age of Ultron then gave him a look that would carry ...