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