Complete the following secret 37 achievements to unlock Xbox Live Gamerscore 
points.

Unlockable - How to Unlock
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Carvahall - Hard (30 points) Make it through the Carvahall level on Hard. 
Carvahall - Normal (20 points) Make it through the Carvahall level on Normal. 
Daret Bridge - Hard (30 points) Make it through the Daret Bridge level on Hard. 
Daret Bridge - Normal (20 points) Make it through the Daret Bridge level on 
Normal. 
Daret Docks - Hard (30 points) Make it through the Daret Docks level on Hard. 
Daret Docks - Normal (20 points) Make it through the Daret Docks level on 
Normal. 
Daret Town - Hard (30 points) Make it through the Daret Town level on Hard. 
Daret Town - Normal (20 points) Make it through the Daret Town level on Normal. 
Gil'ead City - Hard (30 points) Make it through the Gil'ead City level on Hard. 
Gil'ead City - Normal (20 points) Make it through the Gil'ead City level on 
Normal. 
Gil'ead Keep - Hard (30 points) Make it through the Gil'ead Keep level on Hard. 
Gil'ead Keep - Normal (20 points) Make it through the Gil'ead Keep level on 
Normal. 
Ra'zac Chase - Hard (30 points) Complete the Ra'zac Chase level on Hard. 
Ra'zac Chase - Normal (20 points) Complete the Ra'zac Chase level on Normal. 
The Spine Mountains - Hard (30 points) Make it through the Spine Mountains level 
on Hard. 
The Spine Mountains - Normal (20 points) Make it through the Spine Mountains 
level on Normal. 
Trapped! - Hard (30 points) Complete the Trapped! level on Hard. 
Trapped! - Normal (20 points) Complete the Trapped! level on Normal.