Arrival spielt man in Mass Effect 2 zuletzt. Der Citadel-Landurlaub kommt vor Priorität: Cerberus-Hauptquartier.
Legendary Edition installs the story DLC whether you wanted the distraction or not. The galaxy map will offer Overlord, Shadow Broker, and a shore leave on the Citadel while the main plot is on fire. Order is the only thing that keeps those missions from spoiling their own sequels.
Two missions are hard gates. Arrival should be the last thing you do in Mass Effect 2. Priority: Cerberus Headquarters is the point of no return in Mass Effect 3, and the ending check happens in the conversation before you launch it.
Mass Effect
Open
Prologue through the first Citadel visit and the Spectre induction.
Four worlds
Therum, Feros, Noveria, and side quests in any order. Bring Down the Sky fits here. Leave Virmire until you can pass Wrex's check and you have decided who dies.
Lock
Ilos and the ending. Do the asteroid mission before this if you want it on this Shepard.
Mass Effect 2
Recruit
Lazarus, Freedom's Progress, then dossiers. Kasumi on the Citadel and Zaeed on Omega are available early because both DLCs are in the box. Horizon interrupts after enough dossiers.
Loyalty
Collector Ship, then loyalties. Overlord and Lair of the Shadow Broker sit well in this stretch. Buy the three ship upgrades as the loyalties unlock them. Save Legion's loyalty for immediately after the Reaper IFF.
End
Suicide mission as soon as the crew is taken. Arrival after that, and after Arrival stop. It is the on-ramp to Mass Effect 3.
Mass Effect 3
Early
Earth, Mars, Citadel, Palaven. From Ashes as soon as Eden Prime is marked, so Javik exists for the rest of the game.
Mid
Tuchanka and the genophage, the Citadel coup, then Omega. Leviathan can be picked up in pieces. Rannoch only after Geth Fighter Squadrons, or peace is impossible.
Lock
Citadel shore leave once Tali and the Virmire survivor are aboard, and before you accept Priority: Cerberus Headquarters. That launch is the point of no return. Check war assets first.
Mass Effect 2, in the order that saves people
Recruit freely until Horizon forces itself. Kasumi and Zaeed can join early. Fit Stolen Memory and Zaeed's loyalty whenever the paragon or renegade bar can stand Zaeed's check. Play Overlord and Lair of the Shadow Broker once your crew feels like a crew and before Arrival. Buy Silaris Armor, Multicore Shielding, and the Thanix Cannon as soon as those loyalties unlock the projects.
Then the IFF, then Legion's loyalty only, then the suicide mission, then Arrival. Anything between the abduction and the relay spends crew lives. Anything after Arrival is you flying around after the story has already left for Earth.
Mass Effect 3, before the door shuts
From Ashes first, when Eden Prime lights up, because Javik comments on missions you have not done yet. Tuchanka before you are locked out of the cure. The Citadel coup before Omega, since Aria's story assumes that political break. Geth Fighter Squadrons before Priority: Rannoch, or the peace dialogue never appears. Citadel shore leave after Tali is aboard and the Virmire survivor has rejoined, so the party has its cast, and before Cerberus Headquarters. Leviathan can be threaded through the middle. Scan and finish side quests before that same briefing. The terminal in the headquarters will not rescue a low total.
Story order by game
Game
Phase
Do this
Mass Effect
Open
Prologue through the first Citadel visit and the Spectre induction.
Mass Effect
Four worlds
Therum, Feros, Noveria, and side quests in any order. Bring Down the Sky fits here. Leave Virmire until you can pass Wrex's check and you have decided who dies.
Mass Effect
Lock
Ilos and the ending. Do the asteroid mission before this if you want it on this Shepard.
Mass Effect 2
Recruit
Lazarus, Freedom's Progress, then dossiers. Kasumi on the Citadel and Zaeed on Omega are available early because both DLCs are in the box. Horizon interrupts after enough dossiers.
Mass Effect 2
Loyalty
Collector Ship, then loyalties. Overlord and Lair of the Shadow Broker sit well in this stretch. Buy the three ship upgrades as the loyalties unlock them. Save Legion's loyalty for immediately after the Reaper IFF.
Mass Effect 2
End
Suicide mission as soon as the crew is taken. Arrival after that, and after Arrival stop. It is the on-ramp to Mass Effect 3.
Mass Effect 3
Early
Earth, Mars, Citadel, Palaven. From Ashes as soon as Eden Prime is marked, so Javik exists for the rest of the game.
Mass Effect 3
Mid
Tuchanka and the genophage, the Citadel coup, then Omega. Leviathan can be picked up in pieces. Rannoch only after Geth Fighter Squadrons, or peace is impossible.
Mass Effect 3
Lock
Citadel shore leave once Tali and the Virmire survivor are aboard, and before you accept Priority: Cerberus Headquarters. That launch is the point of no return. Check war assets first.
The game allows it. You should not. It is the narrative handoff to Mass Effect 3, and it does nothing for the Collector base. Do it after everyone you meant to save is already saved.
When is the Citadel DLC party the most complete?
After Rannoch if Tali lived, after the coup if the Virmire survivor lived, and after From Ashes if you want Javik. Before Priority: Cerberus Headquarters. After that mission the shore leave is gone.
Does Bring Down the Sky matter?
It is the ME1 story DLC, a batarian asteroid plot. Do it after you can fly the Normandy and before Ilos. It is not Pinnacle Station, and it is in the box.