Here’s the list in full: Flooded Complete all co-op missions Xbox 360: 30 GS Xbox One: 60 GS Overachiever Earn all co-op medals at least once Xbox 360: 50 GS Xbox One: 100 GS Dynamic Duo Earn all Gold stars in all co-op missions Xbox 360: 30 GS Xbox One: 60 GS Extermination Kill 10,000 enemies in co-op Xbox 360: 30 GS Xbox One: 60 GS The Company of Strangers Complete a co-op mission with at least 5 different players Xbox 360: 10 GS Xbox One: 20 GS Halo: Spartan Assault Xbox One Exclusive Achievements: The Enemy of my Friend Get a higher individual score than your partner on all co-op missions 100 GS Immune Finish a co-op mission without becoming infected 100 GS Original Halo: Spartan Assault Achievements: Overrun Complete Operation A Xbox 360: 10 GS Xbox One: 20 GS Switched On Complete Operation B Xbox 360: 10 GS Xbox One: 20 GS Switched Off Complete Operation C Xbox 360: 10 GS Xbox One: 20 GS Evacuated Complete Operation D Xbox 360: 10 GS Xbox One: 20 GS Terminated Complete Operation E Xbox 360: 10 GS Xbox One: 20 GS Escort Service Keep all Wolverines intact in Operation A, Mission 3 Xbox 360: 5 GS Xbox One: 10 GS Nowhere to Hide Prevent all Jackals from regenerating their shield in Operation B, Mission 3 Xbox 360: 10 GS Xbox One: 20 GS Never Knew What Hit Them Kill a convoy target with every stationary gun in Operation C, Mission 3 Xbox 360: 10 GS Xbox One: 20 GS Brute Force Finish the objectives using only the Brute Shot, melee and grenades in Operation D, Mission 1 Xbox 360: 10 GS Xbox One: 20 GS Foot Soldier Finish the objective without using any vehicles/turrets in Operation E, Mission 4 Xbox 360: 10 GS Xbox One: 20 GS Recruit Earn a star of any type in an operation mission Xbox 360: 5 GS Xbox One: 10 GS Prodigy Earn your first Gold star in an operation mission Xbox 360: 5 GS Xbox One: 10 GS 117 Earn all Gold stars in all operation missions Xbox 360: 20 GS Xbox One: 40 GS Distinguished Service Earn all medals in the game at least once Xbox 360: 15 GS Xbox One: 30 GS Weapon of Choice Score a kill with every handheld weapon (excluding Rocket Launcher and Spartan Laser) Xbox 360: 5 GS Xbox One: 10 GS Powered by MJOLNIR Use every ability at least once (excluding Overshield and Seeker Drone) Xbox 360: 10 GS Xbox One: 20 GS Skull Combo Complete any mission with the maximum number of Skulls active Xbox 360: 10 GS Xbox One: 20 GS Vidmaster Challenge Complete Operation 5, Mission 1 with the Hollow and Black Eye Skulls active Xbox 360: 15 GS Xbox One: 30 GS Extra Credit Complete 75 challenges Xbox 360: 10 GS Xbox One: 20 GS Pension Plan Earn 25000 Spartan Points throughout your career Xbox 360: 10 GS Xbox One: 20 GS Archeology Complete Operation F Xbox 360: 10 GS Xbox One: 20 GS Silvertip Destroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2 Xbox 360: 10 GS Xbox One: 20 GS Vidmaster Challenge 2.0 Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active Xbox 360: 15 GS Xbox One: 30 GS Source VG247.
Thanks for the information for both consoles! I just downloaded the game. Are the Achievements completed following a storyline or are some hidden?