Here is the full list of all 50 The Club (GFWL) achievements worth 1,000 gamerscore.
Shoot All Secret Skullshots in every level in either Tournament or Single Event.
Complete Warzone on Insane difficulty
Complete Ocean Liner on any difficulty level in Tournament.
Finish a Tournament on any difficulty with all 8 characters.
Shoot 100 Skull shot targets in Team Skullshot.
25 'First Kills' in any Ranked Multiplayer game mode.
Complete Manor House on Insane level.
Win a ranked match in every location.
Get 100 Explosive Kills in Ranked Matches.
Capture the base 25 times in Ranked matches.
Get 100 Sniper Kills in Ranked Matches.
Get 100 Melee Kills in Ranked Matches.
Kill the Enemy Fox 25 times in Ranked Matches.
Be on the winning team in a ranked team match.
Survive for 120 seconds as the hunted in Hunter Hunted.
Score 10,000 points in a Score Match.
Win your first ranked match.
Your team survives for more than 2 Minutes in Team Siege.
Win any free-for-all game without dying.
Complete Bunker on Insane level.
Complete Warehouse on Insane level.
Complete Ocean Liner on Insane level.
Complete Prison on Insane level.
Kill every enemy on a level using less than 50 bullets in either Tournament or Single Event.
Spell the word SOS in the Warehouse in either Tournament or Single Event.
Complete Venice on Insane level.
Complete Steel Mill on Insane level.
Achieve one of every ‘in game award’ either in Tournament or Single Event.
Kill 30 enemies in a level with a melee attack in either Tournament or Single Event.
Save 5 Playlists in GunPlay.
Smash 50 Doors in either Tournament or Single Event.
Hit 5 Skullshots in a row (without killing a bad guy in between).
Complete the Steel Mill on any difficulty level in Tournament.
Complete the game on any difficulty level in Tournament.
Complete Bunker on any difficulty level in Tournament.
Complete Manor House on any difficulty level in Tournament.
Complete Warehouse on any difficulty level in Tournament.
Get more than 10,000 points for a single kill in either Tournament or Single Event.
Complete Prison on any difficulty level in Tournament.
Play an event with every one of the 6 unlocked characters in either Tournament or Single Event.
Shoot All Skullshots on one level in either Tournament or Single Event.
Get in the top 100,000 on any leaderboard.
Get in the top 5,000 on any leaderboard.
Complete Venice on any difficulty level in Tournament.
Complete a Run the Gauntlet with 20 seconds left.
Achieve your first x10 combo in either Tournament or Single Event.
Achieve every ‘in game award’ in one level in either Tournament or Single Event.
Shoot All Skullshots on every level in either Tournament or Single Event.
Reach the level objective with a maximum combo in either Tournament or Single Event.
Kill 10,001 people in multiplayer Ranked Matches.