Gears of War 2 achievements

Gears of War 2

4.3 from 21825 votes

There are a maximum of 79 Gears of War 2 achievements (50 without DLC) worth 3,099 (1,750)

259,747 tracked gamers have this game, 10,207 have completed it (3.93%)

Achievement Details

Open Relationship in Gears of War 2

Open Relationship39 (30)

Complete 10 chapters in Co-op on any difficulty (Marcus or Dom)

  • Unlocked by 152,640 tracked gamers (59% - TA Ratio = 1.30) 260,403  

Achievement Guide for Open Relationship

87,004 (59,856)
Achievement won on 08 Nov 08
TA Score for this game: 1,067
Posted on 09 November 08 at 14:38
This solution has 40 positive votes and 5 negative votes. Please log in to vote.
If you're playing on insane, you'll probably need to co-op anyway. Otherwise, get a friend to either play with you local or online. After 10 chapters, (when text comes up on the screen saying the name of the act, then the chapter) you'll be awarded with the achievement.
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