Accomplish the indicated achievement to get the corresponding number of 
Gamerscore points:

  Perseverant Award (50 points): Complete all Bonus Missions. 
  Bronze Sharpshooter (50 points): Earn all Bronze Medals in Action Zone. 
  Silver Sharpshooter (75 points): Earn all Silver Medals in Action Zone. 
  Gold Sharpshooter (100 points): Earn all Gold Medals in Action Zone. 
  Platinum Sharpshooter (200 points): Earn all Platinum Medals in Action Zone. 
  Experienced Hunter (50 points): Complete the Career Mode on Normal. 
  Pro Hunter Award (100 points): Complete the Career Mode on Difficult. 
  Apiphobia (20 points): Destroy at least 10 Bee Hives playing Career Mode. 
  Completionist (60 points): Complete the game 100% on Normal. 
  Skilled Hunter Award (20 points): Use all Power-Ups at least once. 
  Snakes on a Plain (20 points): Take down at least 15 Poisonous Snakes playing 
  Career Mode. 
  Rabid Completionist (120 points): Complete the game 100% on Difficult.