Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
A ground ace	Destroy 25 enemy planes.	100
Assassin	Kill 25 enemies with an ax.	50
Bratatatata!	Kill fifty enemies with the machine gun.	50
Butcher	Kill fifty enemies with an ax.	100
Do not come!	Kill 25 enemies with pistol.	25
Dominator	Kill 75 enemies with machine gun.	100
Graveyard hyena	Search 75 bodies.	75
Greenhorn	Complete the tutorial.	10
Gunslinger	Kill 75 enemies with pistol.	100
Heaven under control	Destroy 10 enemy planes.	50
Hunter	Destroy ten enemy tanks.	100
Keep on nosediving!	Destroy five enemy planes.	25
Let it go on!	Destroy enemy tank.	25
Nobody will be offended	Search five bodies.	15
One-armed bandit	Kill fifty enemies with pistol.	50
Taste your own weapons!	Destroy five enemy tanks.	50
Try to get me!	Kill 25 enemies with machine gun.	25
When you run out of ammo...	Kill five enemies with an ax.	25
You have to survive somehow...	Search 25 bodies.	25