Here is the full list of all 50 007 Legends achievements.
Public Match: Kill 50 players while they are aiming down the scope of a sniper rifle.
Public Match: Win a Data Miner match without being killed.
Public Match: Reach level 6 (Midshipman).
Public Match: Kill an enemy who has completed the campaign or who already has this Achievement.
Distract an enemy.
Complete all levels on 'Agent' difficulty or higher.
Complete all levels on a 'Classic' difficulty.
Complete the 'Goldfinger' mission.
Complete the 'O.H.M.S.S.' mission.
Complete the 'Licence To Kill' mission.
Complete the 'Die Another Day' mission.
Complete the 'Moonraker' mission.
Campaign: Collect 30% of all character bio intel.
Campaign: Collect 100% of all character bio intel.
Campaign: Collect 30% of all organization intel.
Campaign: Collect 100% of all organization intel.
Campaign: Take a photograph of the crocodile.
Campaign: Overload the gyroscopic training machine in the Space Port.
Get 100% collection rating for 'Die Another Day'.
Get 100% collection rating for 'Goldfinger'.
Get 100% collection rating for 'O.H.M.S.S.'
Get 100% collection rating for 'Licence To Kill'.
Get 100% collection rating for 'Moonraker'.
Campaign: Buy all of the attachments for one weapon class.
Campaign: Upgrade a gadget to its highest level.
Campaign: Acquire all of the MI6 training modules.
Complete all of the trials on any one level.
Complete eight of the 'Operative' level trials.
Complete six of the 'Agent' level trials.
Complete three of the '007' level trials.
Campaign: Reach level three weapon proficiency with the P99.
Reach Grave’s plane without using any in-car gadgets.
Experience zero-g.
Campaign: Be awarded a total of 10,000 XP.
Take out two enemies with one shock dart.
Make an elimination with every weapon class.
Earn a 1 star rating in each mission of the Challenges mode.
Earn a 3 star rating in any mission of the Challenges mode.
Get 30% of all available stars in the Challenges mode.
Get 60% of all available stars in the Challenges mode.
Get 100% of all available stars in the Challenges mode.
Public Match: Reach level 50 (00 Agent Grade 0).
Multiplayer: Enter 00 Specialization.
Public Match: Win a match using only laser-based weapons.
Public Match: Win a match on Main Vault, Smelting Room and Loading Bay.
Public Match: Get 25 electrocution kills as Zao or Gustav Graves.
Public Match: In Bomb Defuse disarm the bomb and plant it at enemy base without getting killed.
Public Match: Survive 50 explosions while using Reactive Armor.
Public Match: In Escalation demote an enemy who is armed with the RPG.
Public Match: Play for more than 24 hours.