Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
| One Day at DARPA (10) | Complete all DARPA training exercises. |
| Space Normandy (15) | Complete Act 1. |
| Storming Grand Hill (15) | Complete Act 2. |
| I Don't Speak Kreon! (15) | Complete Act 3. |
| My Way (15) | Complete Act 4. |
| End to Major Combat Operations (15) | Complete Act 5. |
| Survivor (30) | Complete all Acts. |
| Operation Overlord II (25) | Complete Act 1 on Hard difficulty or above. |
| Ain't Life Grand? (25) | Complete Act 2 on Hard difficulty or above. |
| Cry on, Kreon! (25) | Complete Act 3 on Hard difficulty or above. |
| The High Way (25) | Complete Act 4 on Hard difficulty or above. |
| Mission Accomplished (25) | Complete Act 5 on Hard difficulty or above. |
| ARS Operator (50) | Complete all Acts on Hard difficulty or above. |
| Gun Runner (10) | Scan and acquire all weapons. |
| King of the Hill (20) | Level a weapon up to maximum operational capability. |
| Fight or Flight (10) | Manually trigger AR Mode and destroy an enemy robot. |
| Adrenaline Rush (20) | Manually trigger AR Mode and destroy three enemy robots in a row. |
| Going in for the Kill (10) | Destroy ten enemy robots with melee attacks. |
| A Heartbreaker and Lifetaker (30) | Destroy 100 enemy robots with melee attacks. |
| Helloooo, Nurse (5) | Revive a friendly troop. |
| Knight in Shining White Armor (15) | Revive 20 friendly troops. |
| Death Wish (20) | Destroy three enemy robots while in damage-triggered AR Mode. |
| 40 Yard Dash (30) | Maintain a Boost dash to the limit of the ARS reactor without overheating. |
| Home Run (10) | Destroy an incoming missile or grenade. |
| Home Run God (10) | Destroy ten incoming missiles or grenades. |
| Brutality Bonus (10) | Destroy a Romanov's arms and legs, then finish it with a melee attack. |
| Romanov This! (20) | Destroy a Romanov with a melee attack. |
| The Hand of God (30) | Destroy two Romanovs in a row using only melee attacks. |
| Robots Tend to Blow Up (10) | Destroy three enemy robots at once with one hand grenade. |
| Hole-in-One (5) | Destroy a Chicane with a hand grenade. |
| Short Circuit (20) | Destroy ten enemy robots that have been disabled with an EMP emitter. |
| Two Birds with One Stone (20) | Destroy two or more enemy robots at once with the LFE gun. |
| Trick Shot (20) | Destroy three enemy robots at once with rocket launcher splash damage. |
| Flash! King of the Impossible (30) | Destroy four enemies simultaneously with the Lock-on Laser. |
| Piece by Piece (20) | Destroy the arms, head, and back of an KNRB-0 Argus robot. |
| That Ended Up Working Out Nicely (10) | After taking control of the enemy transport in Act 2-2, do not let a single enemy escape. |
| Failure Breeds Success (15) | Destroy two Argus robots in Act 2-3 while they are in bipedal mode. |
| Leibniz Defense Agency (10) | Defend the Pangloss statue in Act 3-2. |
| Tightrope Walker (10) | Destroy two cannons in Act 3-3 and complete the mission. |
| Fisher is the Other Sam (15) | Proceed on the monorail in Act 3-4 without being spotted by the enemy troops or searchlights. |
| Flyswatter (20) | Destroy all the floating turrets in Act 3-4. |
| Guardian (10) | Do not allow any friendly armor to be destroyed during Act 3-5. |
| Hurry the #@$% Up! (10) | Destroy five or more enemy transports from atop the Kreon in Act 3-7. |
| Civil Disobedience (30) | Ignore the elevator start order in Act 4-1. Instead, hold position and destroy all reinforcements. |
| Buzzard Beater (30) | Destroy the Buzzard without allowing it to reach ground level in Act 5-1. |
| Smoke 'em if ya got 'em! (30) | Destroy 10 enemies distracted by cigarettes during one mission. |
| Auld Lang Syne (15) | Destroy two enemy robots who have been distracted by a cigarette. |
| The Best of All Possible Worlds (30) | Find and fire upon all of the Pangloss statues hidden on the colony. |
| Living Legend (50) | Complete the game without dying, regardless of difficulty level. |
| Secret Achievements | - |