'Call of Duty: Vanguard' revealed in 'Warzone' live event

This marked the second major promotional event for a Call of Duty game held in "Warzone," the free-to-play battle royale title that has served as a nexus for the franchise's multiple properties. Last year, "Warzone" teased the release of 2020 game "Call of Duty: Black Ops Cold War" with a similar event that leaned into elements of espionage prevalent in the Black Ops line of games. This time, the event asked players to secure a supply of dynamite to set a trap in a tunnel for a massive armored train. Players were then tasked with destroying the train's turret cannons and armored cars before blowing up the engine. The more progress was made destroying the train, the more in-game rewards they unlocked, like special stickers, vehicle paint jobs and weapon blueprints.