Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
AIRSTRIKE	You've used an airstrike on the battlefield.	100
CARNAGE+	You've killed 5000 Infected.	200
CARNAGE	1000 Infected killed.	100
CONSTRUCTOR	You've installed 500 constructions.	200
GREEDY	You've sucured 10 Money Drops.	200
LEVEL UP+	You've reached the level 50.	200
LEVEL UP	Level 10 reached.	100
MISSION+	You've completed 25 missions.	200
MISSION	10 missions completed.	100
READY TO FIGHT	Tutorial completed.	100
RECRUITMENT	You've unlocked one mercenary.	100
SERUM	You've used a serum to stop an infection.	100
SKILLS	You've unlocked one skill.	100
STYLISH	You've unlocked one banner.	100
UPGRADE	You've upgraded one weapon.	100