https://www.pcgamer.com/anthem-will-have-matchmaking-for-every-activity-in-the-game/

Anthem lead producer Ben Irving has confirmed that BioWare’s impending shooter will feature matchmaking for every single activity, unlike Destiny or MMOs like World of Warcraft, which restrict the most challenging dungeons and raids to premade groups. 

Irving clarified that matchmaking will be opt-out, so you won’t need to tackle everything as a group, but for the harder stuff you’ll probably want to bring some friends along.