ANTHEM was always billed as an online multiplayer experience where teams of four can get together and take on the toughest PvE tests there is to offer. However, you can play every piece of content the game has to offer on your own. Here's how.
How to Play ANTHEM on Your Own
Once you've headed to the expedition screen as part of your Javelin in Fort Tarsis, select which mission you want to play and which difficulty level you'll play it on.
Next, hold the R3 button. This will bring up your privacy settings where you can select whether the session will be public or private. Public will automatically matchmake you with other players, while Private will allow you to go at it alone.