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