Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Ahab's Prosthesis (secret)	Ahab is ready for the hunt	100
Harpooned Whale (secret)	Ahab got what he wanted	100
No Big Guns (secret)	Beat the game without using SWAT	100
No Bullshit (secret)	Don't bite on a single false alarm	100
No God (secret)	Take advantage of all Special Church services	100
No Irish (secret)	Beat the game without using the Paddy Wagon	100
No One Left Behind (secret)	Respond to all legitimate calls	100
Severed Leg (secret)	Ahab lost his leg, but it only made him angrier	100
Sinking Pequod (secret)	The ship fell victim to Ahab's obsession	100
Whaleboat on the Water (secret)	Ahab prepared for the decisive blow	100