Defender

   Gamerscore:
Mutant (10 ):  5    .
One Wave (10 ):      .
Cooperation (10 ):  15 000   .
Competitive (15 ):  30   Xbox Live.
Nice Catch (15 ):    mid-air catch.
Getting Better (15 ):   .
Fifteen Grand (15 ):  15 000.
Run! (20 ):    75   ,   .
Baiter Bane (20 ):     5  
 "" .
Five Waves (20 ):   .
Twenty-Five Grand (25 ):  25 000.
Protect All Humans (25 ):        
.

 