Mass Effect 3 achievements

Mass Effect 3

4.6 from 9946 votes

There are a maximum of 68 Mass Effect 3 achievements (50 without DLC) worth 2,274 (1,550)

116,171 tracked gamers have this game, 13,061 have completed it (11.24%)

Achievement Details

Defender in Mass Effect 3

Defender38 (25)

Attain the highest level of readiness in each theater of war.

  • Unlocked by 50,767 tracked gamers (44% - TA Ratio = 1.51) 116,171  

Achievement Guide for Defender

283,039 (145,455)
Achievement won on 15 Oct 13
TA Score for this game: 2,274
Posted on 14 October 13 at 01:38, Edited on 23 February 14 at 03:11
This solution has 67 positive votes and 1 negative vote. Please log in to vote.
An alternative method for attaining the highest level of readiness in each theater of war is by going to the Galaxy at War page of the N7 HQ web site:

Mobile: (works well on WP)

- Connection to Xbox Live
- Gamertag with Xbox Live Free membership or Xbox Live Gold membership
- Mass Effect 3 Online Pass (Free since 30th May 2013)

External image

Each theater of war starts at 50.00% readiness. First click on one of the five theaters on the Galactic Readiness map:
- Terminus Systems
- Attican Traverse
- Earth Systems Alliance Space
- Outer Council Space
- Inner Council Space

External image

Next click on one of the 3 missions. The missions will take either 1 hour, 3 hours or 5 hours to complete and offer increasing amounts of Readiness Rating as a reward. You can only have 5 missions running at the same time, so it is best to choose a 1 hour mission from each theater, unless you are going to be away from your computer for more than 5 hours, in which case choose the 5 hour missions.

When a mission has completed, you can collect your reward and start another mission. When all theaters are at 100% readiness, load up Mass Effect 3 while connected to Xbox Live and you will get the achievement at the main menu. It is possible to go from 50% readiness to 100% readiness in less than 20 hours if you are able to start new missions every hour. Be aware that readiness drops over time, so it is best to do this over as few days as possible.

You can also increase Galactic Readiness by completing N7 Special Ops missions in Mass Effect 3 multiplayer, or by recruiting Cerberus Escapees in and (iPad).

This method is also useful for raising your Effective Military Strength, required for
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