Here is the full list of all 51 METAL GEAR SOLID 2: Sons of Liberty - there are Master Collection Version achievements.
Place first in 50 different VR/Alternative missions
Complete at least one of the Snake Tales
Complete Boss Survival
Beat 30 enemies unconscious
Break the neck of 30 enemies
Attain grip level 3
Disorient an enemy with a cloud of smoke from a fire extinguisher
Earn the title of Big Boss
Destroy 5 cameras
Get the Plant stealth suit
Tranquilize 100 enemies
Get the infinity wig
Catch a glimpse of Vamp standing in the streets of New York during the end cinematic
Hear Johnny's bowel noises in two locations
Complete a VR or Alternative mission
Watch Rose kill Raiden on a rooftop
Watch something in the Casting Theater
Clear the game without entering Alert Mode (not including events where Alert Mode is mandatory)
Collect every type of weapon in the Plant
Lure a guard with a girlie magazine
Collect all boxes
Get sea lice all over your rations
Down an enemy with steam from a pipe
Get the Tanker stealth suit
Send Otacon a picture of the marine with no pants
Get the bandana
Take a clear photograph of the ghost image in Hold No. 2
Clear the game without killing anyone
Get caught by Otacon stimulating yourself
Kiss a poster in a locker
Hold up 30 enemies
Read all the pages in the Screenplay Book
Beat the Tanker and Plant chapters on any difficulty
Defeat Solidus Snake
Defeat Metal Gear RAY
Befriend Olga Gurlukovich
Acquire the digital camera
Shoot an enemy radio
Find Emma Emmerich
Defeat Vamp
Destroy the AV-88 Harrier II
Meet President James Johnson
Learn the location of the president
Collect a dog tag
Survive Fortune's attack
Defeat Fatman
Meet Revolver Ocelot
Learn how to defuse C4 bombs from Peter Stillman
Collect every type of weapon on the Tanker
Defeat Olga Gurlukovich
Put an enemy in a locker