This is a pretty simple one. Are there any missions in the game that are mutually exclusive? That is, are there any two or more missions that are uncompletable in a single playthrough?

For example, say the missions Kill Guys #5, Fetch Quest #11, and Planet Scanner #19 are available to complete. When I finish mission Fetch Quest #11, mission Kill Guys #5 becomes unavailable. However, at the same time, if I finish Kill Guys #5, mission Fetch Quest #11 becomes unavailable. Therefore, it's impossible to complete Kill Guys #5 and Fetch Quest #11 in a single playthrough due to the missions canceling each other out.

Are there any actual scenarios like the example above in the game?

  • There have never been missions in mass effect which are mutually exclusieve.
    – Rare Candy
    Mar 20 '12 at 22:46

Nope. As long as you complete the timed missions and other side missions before Priority missions, you won't miss any.

  • any proof? -1 till you do.
    – Paralytic
    Mar 20 '12 at 7:36
  • not really he doesnt even say if he has completed the game or anything just says no.
    – Paralytic
    Mar 20 '12 at 9:30
  • @Paralytic: The only mission I didn't complete was the side mission on Eden Prime, and that's only because it becomes locked out after leaving with Javik. Is it possible that I didn't acquire every mission on the Citadel? Sure, but in previous games you didn't receive missions that were mutually exclusive, and I haven't seen evidence for that in ME3.
    – MBraedley
    Mar 20 '12 at 11:09
  • 2
    @Para That's an interesting point. The in-game Journal is absolutely no help at telling you if you've done everything.
    – Ampersand
    Mar 20 '12 at 16:25
  • I tried editing the answer and adding his comment but i think it was disapproved by the moderators
    – Paralytic
    Mar 20 '12 at 16:32

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