Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Agent (40 points)	You have completed the game in Normal mode.
Big Bang (20 points)	You have killed 200 enemies with explosives.
Fight Club (20 points)	You have killed 50 enemies with a melee attack.
Finish Him (10 points)	You have killed an enemy by finishing him.
Galactic Explorer (40 points)	You have reached 100% in World Exploration.
Heavy Fire (20 points)	You have killed 500 enemies with the Heavy Shot.
Hero (50 points)	Conrad has reached level 30.
Master of Virtuality (50 points)	You have completed all VR challenges.
Maximum Overdrive (50 points)	You have obtained the maximum level for every upgrade.
Rookie (20 points)	You have completed the game in Easy mode.
Super Agent (60 points)	You have completed the game in Hard mode.
Terminator (20 points)	You have killed 50 enemies with an Execution.