Call of Duty: Warzone has brought back the Gaia skin (AKA Groot) after a prolonged absence. The Call of Duty franchise used to have a bunch of generic characters running around in the battlefield, many of them nameless and indistinguishable from an ordinary grunt. Then games like Fortnite proved you could make a killing by selling new skins and characters for $20 a pop. Now there are tons of crossovers, special skins for original Call of Duty characters, and more. Although these skins only have cosmetic benefits, some players have been able to utilize them to get an upperhand in game. There have been a few examples of this over the years, primarily with players using them to blend into the environment and become harder to see.