Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
| Realistic Difficulty (50) | Complete single player story on "Realistic" difficulty |
| Co-op Realistic Difficulty (50) | Complete the co-op story on "Realistic" difficulty |
| Quality Time (20) | Invite a friend to join and participate in a co-op story or game mode session |
| Hunter (10) | Complete any 1 map in "Hunter" game mode in co-op |
| Last Stand (10) | Complete any 1 map in "Last Stand" game mode in co-op |
| Hunter Completionist (20) | Complete all maps in "Hunter" game mode on rookie or normal difficulty |
| Hunter Master (50) | Complete all maps in "Hunter" game mode on realistic difficulty |
| Last Stand Completionist (20) | Complete all maps in "Last Stand" game mode on rookie or normal difficulty |
| Last Stand Master (50) | Complete all maps in "Last Stand" game mode on realistic difficulty |
| Face-Off Completionist (20) | Complete all maps in "Face-Off" game mode using any connection type |
| Face Off (10) | Win one match in "Face-Off" game mode on any difficulty |
| Preparation Master (30) | Complete all prepare & execute challenges |
| Stealth Master (30) | Complete all vanish challenges |
| Best Of The Best (30) | Complete all Splinter Cell challenges |
| Well-Rounded (50) | Complete all challenges |
| Weapon Upgraded (10) | Purchase all 3 upgrades for any 1 weapon |
| Gadget Upgraded (10) | Purchase all 3 upgrades for any 1 gadget |
| Weapons Expert (20) | Purchase all 3 upgrades for all weapons |
| Gadgets Expert (20) | Purchase both upgrades for all gadgets |
| Weapons Collector (20) | Unlock all weapons in the weapon vault |
| Variety (10) | Purchase any 1 uniform |
| Accessorizing (10) | Purchase any 1 accessory for any 1 uniform |
| Ready For Anything (20) | Purchase all 9 accessories for all uniforms |
| Fashionable (20) | Purchase all 6 texture variants for all uniforms |
| Perfect Hunter (20) | Complete any map in Hunter without ever having been detected on realistic difficulty |
| Last Man Standing (50) | In Last Stand, survive all enemy waves of any map in one session without failing on any difficulty |
| Revelations (20) | Discover Anna Grimsdottir's dark secret |
| Secret Achievements | - |
| Merchant's Street Market (20) | Complete Single Player Story "Merchant's Street Market" on any difficulty |
| Kobin's Mansion (20) | Complete Single Player Story "Kobin's Mansion" on any difficulty |
| Price Airfield (20) | Complete Single Player Story "Price Airfield" on any difficulty |
| Diwaniya, Iraq (20) | Complete Single Player Story "Diwaniya, Iraq" on any difficulty |
| Washington Monument (20) | Complete Single Player Story "Washington Monument" on any difficulty |
| White Box Laboratories (20) | Complete Single Player Story "White Box Laboratories" on any difficulty |
| Lincoln Memorial (20) | Complete Single Player Story "Lincoln Memorial" on any difficulty |
| Third Echelon HQ (20) | Complete Single Player Story "Third Echelon HQ" on any difficulty |
| Michigan Ave. Reservoir (20) | Complete Single Player Story "Michigan Ave. Reservoir" on any difficulty |
| Downtown District (20) | Complete Single Player Story "Downtown District" on any difficulty |
| White House (20) | Complete Single Player Story "White House" on any difficulty |
| St. Petersburg Banya (20) | Complete CO-OP Story "St. Petersburg Banya" on any difficulty |
| Russian Embassy (20) | Complete CO-OP Story "Russian Embassy" on any difficulty |
| Yastreb Complex (20) | Complete CO-OP Story "Yastreb Complex" on any difficulty |
| Modzok Proving Grounds (20) | Complete CO-OP Story "Modzok Proving Grounds" on any difficulty |
| Judge, Jury and Executioner (10) | Take down Tom Reed |
| Man of Conviction (10) | Allow Tom Reed to live |
| Survivor (10) | Battle your CO-OP teammate and survive |