Here is the full list of all 50 Vanquish achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Complete all of the Tactical Challenges in VANQUISH.
Destroy two cannons in Act 3-3 and complete the mission.
Destroy all the floating turrets in Act 3-4.
Destroy 100 enemy robots with melee attacks.
Destroy the Buzzard without allowing it to reach ground level in Act 5-1.
Defend the Pangloss statue in Act 3-2.
Do not allow any friendly armor to be destroyed during Act 3-5.
Destroy two Argus robots in Act 2-3 while they are in bipedal mode.
Destroy four enemies simultaneously with the Lock-on Laser.
Find and fire upon all of the Pangloss statues hidden on the colony.
Destroy two Romanovs in a row using only melee attacks.
Destroy ten enemy robots with melee attacks.
Destroy a Romanov's arms and legs, then finish it with a melee attack.
Complete all Acts.
Complete all Acts on Hard difficulty or above.
Complete the game without dying, regardless of difficulty level.
Complete Act 5.
Complete Act 5 on Hard difficulty or above.
Complete Act 4.
Complete Act 4 on Hard difficulty or above.
Ignore the elevator start order in Act 4-1. Instead, hold position and destroy all reinforcements.
Complete Act 3.
Complete Act 3 on Hard difficulty or above.
Destroy five or more enemy transports from atop the Kreon in Act 3-7.
Destroy ten enemy robots that have been disabled with an EMP emitter.
Destroy 10 enemies distracted by cigarettes during one mission.
Destroy two enemy robots who have been distracted by a cigarette.
Proceed on the monorail in Act 3-4 without being spotted by the enemy troops or searchlights.
Complete Act 2.
Complete Act 2 on Hard difficulty or above.
Level a weapon up to maximum operational capability.
Manually trigger AR Mode and destroy three enemy robots in a row.
Destroy the arms, head, and back of an KNRB-0 Argus robot.
Revive 20 friendly troops.
Destroy two or more enemy robots at once with the LFE gun.
After taking control of the enemy transport in Act 2-2, do not let a single enemy escape.
Destroy a Romanov with a melee attack.
Destroy three enemy robots at once with one hand grenade.
Destroy a Chicane with a hand grenade.
Maintain a Boost dash to the limit of the ARS reactor without overheating.
Complete all DARPA training exercises.
Destroy three enemy robots at once with rocket launcher splash damage.
Destroy ten incoming missiles or grenades.
Complete Act 1.
Complete Act 1 on Hard difficulty or above.
Scan and acquire all weapons.
Revive a friendly troop.
Destroy three enemy robots while in damage-triggered AR Mode.
Destroy an incoming missile or grenade.
Manually trigger AR Mode and destroy an enemy robot.