- Difficulty
- Casual, Normal, Hardcore, Insane. It starts on Normal; The Coalition built it for Hardcore. Only three achievements need Insane.
- Co-op
- Two players split-screen on Xbox, up to four online. Difficulty is per player.
- Saves
- Five save slots, and chapter select for any section you have reached.
- Side content
- Collectibles from Act 1. The guides list no Hard Case or secondary objective before Act 2, Chapter 2.
Picking a difficulty
Co-op, before you invite anyone
- Split-screen is two players on Xbox Series X|S only, from one copy. PC has no split-screen.
- Online co-op is up to four players, each with their own copy or Game Pass. Online play needs a Game Pass tier that includes online multiplayer, sold separately (Xbox store listing).
- Everyone picks one of the four Bravo Squad members — Marcus, Dom, Mags or Lucas — and all four are open from the start. Solo, the rest are AI.
- The host sets the lobby public or private and can tag it for play style and voice chat. Only the host can pause.
- On Steam you only need to link a Microsoft account to invite players on Xbox or the Xbox app.
- You're My Brother needs every act finished in co-op, so if a friend is joining, start the campaign together.
Cover and movement: what changed
Worth doing as you go
- Listen for the COG Omen sting: a collectible is close. A Hard Case gets a pop-up instead, and the Tac-Com shows both; in chapters with a map, they are marked on it.
- Accept secondary objectives when they are offered. Some you are pointed to, others you only find by following a firefight or a conversation. They pay in weapon mods.
- Some collectibles and Hard Cases only open after a main objective. If one is on the map but out of reach, come back later in the chapter.
- Chapters have points of no return. In Act 2, Chapter 2, Hold the Line, the gate to Charlie Squad and the hotel at the end are two of them: clear what is around first.
- Supply Caches are where you change loadout and fit mods. A weapon you have picked up, such as the Gut-Puncher, is then available at them.
- The War Journal lists the collectibles still missing, act by act and chapter by chapter, and chapter select takes you back for them.