Call of Duty: WWII’s loot boxes - called supply drops - will literally drop onto the beach and pop open, in front of yourself and other players, in the new Normandy social space.
A clip of such an event was posted to the game’s subreddit, captured by a player who clearly had early access to the game (it’s not out until Friday). The crate lands with a satisfying thud and three cards pop out. According to OP cuzseile, the crate exists in the world, and other players can see what you get.
Loot-driven games like Destiny, World of Warcraft and countless others notify other players whenever you get a drop above a certain rarity level, presumably to motivate them to keep playing through jealousy. We wonder what the social psychology rationale is for showing everyone the entire contents of each loot box - perhaps you can't stand their mockery when you get three grey-tier voice lines, so you buy loot boxes until you get something decent?
In a welcome change from previous CODs, WW2 devs Sledgehammer have said the contents of their supply drops are all cosmetic.