Priority: The Citadel I Edit

    N7: Cerberus Lab
    Priority: Eden Prime
        DLC Mission: Requires the DLC pack Mass Effect 3: From Ashes. 
    Shrike Abyssal: Prothean Obelisk
        This mission cannot be completed before Priority: Palaven. 

Priority: Palaven Edit

    Apien Crest: Banner of the First Regiment
    Aria: Blood Pack
    Aria: Blue Suns
    Aria: Eclipse
    Benning: Evidence
        This mission cannot be completed before Priority: Sur'Kesh.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Citadel: Alien Medi-Gel Formula
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Citadel: Aria T'Loak
        DLC Mission: Requires the DLC pack Mass Effect 3: Omega. 
    Citadel: Barla Von
        This mission cannot be completed before Priority: Sur'Kesh.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Citadel: Biotic Amp Interfaces
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Citadel: Dr. Bryson
        DLC Mission: Requires the DLC pack Mass Effect 3: Leviathan. 
    Citadel: Hanar Diplomat
        Mass Effect 2 Squadmate Cameo: If recruited and alive, Kasumi Goto will appear in this mission.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Citadel: Heating Unit Stabilizers
        This mission cannot be completed before Priority: Tuchanka. 
    Citadel: Improved Power Grid
        This mission cannot be completed before Priority: Sur'Kesh.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Grissom Academy: Emergency Evacuation
        Progress-Sensitive Mission: This mission expires if not completed before Priority: The Citadel II.
        Mass Effect 2 Squadmate Cameo: If recruited and alive, Jack will appear in this mission. 
    Irune: Book of Plenix
        This mission cannot be completed before Priority: Tuchanka. 
    Ismar Frontier: Prototype Components
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Tuchanka. 
    Kite's Nest: Pillars of Strength 

Priority: Sur'Kesh Edit

    Attican Traverse: Krogan Team
        Main Plot Progression: Unlocks the main plot mission Priority: Tuchanka.
        Mass Effect 2 Squadmate Cameo: If recruited and alive, Grunt will appear in this mission.
        Citadel: Krogan Dying Message
        N7: Cerberus Abductions 
    Citadel: GX12 Thermal Pipe
    N7: Cerberus Attack
    Tuchanka: Turian Platoon
        Main Plot Progression: Unlocks the main plot mission Priority: Tuchanka.
        Citadel: Cerberus Automated Turret Schematics
            This mission cannot be completed before Priority: The Citadel II. 
        N7: Cerberus Abductions
        Tuchanka: Bomb
            Timed Mission: This mission will be marked as failed if not completed within three missions after acquisition. 

Priority: Tuchanka Edit

    N7: Cerberus Fighter Base 

Priority: The Citadel II Edit

    Arrae: Ex-Cerberus Scientists
        Mass Effect 2 Squadmate Cameo: If alive, Jacob Taylor will appear in this mission. 
    Athena Nebula: Hesperia-Period Statue
    Citadel: Batarian Codes
    Citadel: Cerberus Ciphers
        This mission cannot be completed before Priority: Thessia. 
    Citadel: Cerberus Retribution
    Citadel: Cerberus Turian Poison
    Citadel: Chemical Treatment
        This mission cannot be completed before Priority: Geth Dreadnought. 
    Citadel: Inspirational Stories
    Citadel: Kakliosaur Fossil
        This mission cannot be completed before Priority: Geth Dreadnought. 
    Citadel: Medical Supplies
    Citadel: Medi-Gel Sabotage
    Citadel: Reaper Code Fragments
        This mission cannot be completed before Priority: Geth Dreadnought. 
    Citadel: Shore Leave
        DLC Mission: Requires the DLC pack Mass Effect 3: Citadel. 
    Citadel: Target Jamming Technology
        This mission cannot be completed before Priority: Geth Dreadnought. 
    Citadel: Volus Ambassador
        Mass Effect 2 Squadmate Cameo: If recruited and alive, Zaeed Massani will appear in this mission. 
    Citadel: Wounded Batarian
    Dekuuna: Code of the Ancients
        This mission cannot be completed before Priority: Rannoch. 
    Hades Nexus: Obelisk of Karza
        This mission cannot be completed before Priority: Rannoch. 
    Hades Nexus: Prothean Sphere
        This mission cannot be completed before Priority: Rannoch. 
    Kallini: Ardat-Yakshi Monastery
        Mass Effect 2 Squadmate Cameo: If recruited and alive, Samara will appear in this mission.
        Citadel: Asari Widow 
    Nimbus Cluster: Library of Asha
    Silean Nebula: Rings of Alune
        This mission cannot be completed before Priority: Rannoch. 
    Valhallan Threshold: Prothean Data Drives 

Priority: Geth Dreadnought Edit

    N7: Fuel Reactors
    Rannoch: Admiral Koris
        Main Plot Progression: Unlocks the main plot mission Priority: Rannoch.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Rannoch. 
    Rannoch: Geth Fighter Squadrons
        Main Plot Progression: Unlocks the main plot mission Priority: Rannoch.
        Progress-Sensitive Mission: This mission expires if not completed before Priority: Rannoch. 

Priority: Rannoch Edit

    Dekuuna: Elcor Extraction 

Priority: Thessia Edit

    N7: Communication Hub