Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
But Who Are These Two? (80 points)	Start and finish a run (second or higher) with the same amount of people.
Chubby Is The New Fit (80 points)	Cross the map without starvation.
Kick Some Armored Ass (80 points)	If you know what I mean. I know you know.
Mass Bathing (50 points)	Send thirty or more tribesmen "swimming" together.
McSandy (80 points)	Finish a desert level without starvation
Not For Any Yummies! (50 points)	Finish a level (second or higher) without cannibalism
Now Shaman Knows (50 points)	Complete the tutorial not losing any men (sacrifice is not a loss).
Rabbit Totem (80 points)	Bring 30 or more men for food in a single level(second or higher)
Retirement Age (50 points)	Start and finish a run (second or higher) with Shaman in the same body.
Shoulder To Shoulder (80 points)	Kill three birds at once not losing a single man.
Sure, Let's Go! (80 points)	Cross the map, having got ten circles of fire-tenders to go with you (no fighting!).
The End? (80 points)	No, just a beginning
The End. (80 points)	Good or bad, but you made it
The Night Is Black And Full Of Terrors (80 points)	Finish a night run without using torches