Mass-effect – At which exact point are the war assets and galactic readiness evaluated for the ending

mass-effect-3

I just finished Mass Effect 3, though I didn't play the multiplayer and my war readiness was therefore at only 50%. So I didn't have enough war assets to get to the best ending.

I now want to play some multiplayer and get that war readiness to a good value, so that I can get the best ending with the same playthrough. I'm wondering now from which point on I need to replay to have my increased effective war asset score count.

At which point in the game is the ending you get determined? When are the war assets counted, the war readiness evaluated and the ending "locked"?

Best Answer

My understanding is that war assets and readiness (and hence EMS) are locked in after Priority: Cerberus Headquarters.

This is based on:

  • entering this mission with 7060 assets / 50% readiness did not award the Master and Commander achievement. The ending did not include the final 'secret' scene.
  • restarting from Priority: Earth with 80% readiness (over 5000 EMS, which should trigger the 'secret' scene) resulting in exactly the same result as the previous attempt.
  • restarting from Priority: Cerberus Headquarters with 100% readiness awarded the Master and Commander achievement. It also resulted in the 'secret' scene in the ending.