Unlock Xbox Live Gamerscore points, by completing the following Achievements!

Achievement	How to unlock
Balls ( 5 points )	Seems you like playing with balls, eh?
Darker Shades ( 15 points )	You convinced a fast-talking bartender to let you see Tong Si Hung.
Ghost ( 15 points )	You made it through an entire hostile area without so much as a squeak.
Good Soul ( 15 points )	Against all odds, you saved Faridah Malik's life.
Guardian Angel ( 10 points )	You paid poor Jaya's debt in full. How very.. humane.. of you.
Hangar 18 ( 10 points )	You found and read the secret message. Now you know too much.
Kevorkian Complex ( 10 points )	You granted a dying man his final request.
Ladies Man ( 10 points )	You convinced Mengyao to spill the beans on the mysterious Hyron Project.
Lucky Guess ( 10 points )	Next time, Jacob better use a more complex code to arm his bombs.
Old School Gamer ( 10 points )	You found all the hidden story items in Megan's office. Point and Click much?
Sentimental Value ( 10 points )	You kept Megan's bracelet for yourself. Apparently, letting go really is the hardest part.
Super Sleuth ( 10 points )	You really nailed your case against Lee Hong.
The Bull ( 25 points )	You defeated Lawrence Barrett, elite member of a secret mercenary hit squad.
The D Project ( 15 points )	You watched the entire credit list and saw the surprise at the end.
The Desk Job ( 15 points )	You convinced Wayne Haas to let you into the morgue.
The End ( 25 points )	You defeated Zhao Yun Ru and destroyed the Hyron Project.
The Fall ( 10 points )	You sent Diamond Chan on the trip of a lifetime.
The Final Countdown ( 15 points )	You showed millionaire Hugh Darrow that his logic was flawed.
The Last Straw ( 15 points )	You talked Doctor Isaias Sandoval out of suicide.
The Mantis ( 25 points )	You defeated Yelena Fedorova, elite member of a secret mercenary hit squad.
The Snake ( 25 points )	You defeated Jaron Namir, Leader of Belltower's Elite Special Operations Unit.
The Take ( 10 points )	Greedy bastard. You accepted O'Malley's blood money and let him go.
The Throwdown ( 15 points )	You convinced the smooth-talking politician Bill Taggart to tell the truth in public.
Unforeseen Consequence ( 15 points )	You convinced Zeke Sanders to let his hostage go.
Yes Boss ( 15 points )	You had an argument with your boss, David Sarif, and won.