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For:
Xbox 360
Senior Master Sergeant Achievement
Senior Master Sergeant
Earn a silver medal in 75% of all story missions
3.21% of players have unlocked this achievement
30
Guides
We have no guides for this achievement.
Players
smrnov
Earned on: Jun 21st 2011, 5:48:41 pm
otakon62
Earned on: Jan 12th 2011, 11:29:58 am
The Dauntless
Earned on: Dec 6th 2010, 8:23:18 pm
Funkyboy K
Earned on: Nov 20th 2010, 5:25:22 am
weffalump
Earned on: Nov 6th 2010, 1:02:32 am
Pigimus Prime
Earned on: Nov 2nd 2010, 4:01:03 pm
Celtic Force
Earned on: Oct 17th 2010, 3:07:31 pm
Stallion83
Earned on: Oct 14th 2010, 4:44:41 pm
NeXsim
Earned Offline
THE GAME 610
Earned Offline
XxKANDExX
Earned Offline
BimBam Kruger
Earned Offline