Alien Swarm: Reactive Drop achievements

4.68%

Pistols Expert

Kill 250 Swarm with the Pistols.

4.77%

Perfect

Complete a mission on Normal difficulty or harder without receiving any damage.

5.01%

Minigun Master

Kill 250 Swarm with the Minigun.

5.09%

Normal Campaign: Research 7

Complete the Research 7 campaign on Normal difficulty or harder.

5.09%

Slaughter Soldier

Kill 250 Swarm with the Chainsaw.

5.17%

Shotgun Specialist

Kill 250 Swarm with the Shotgun.

5.25%

Hard Campaign: Operation Cleansweep

Complete the Operation Cleansweep campaign on Hard difficulty or harder.

5.41%

Easy Campaign: Research 7

Complete the Research 7 campaign on Easy difficulty or harder.

5.98%

Peace Medic

Heal 300 points of damage in a single mission without dealing any non-melee damage to the Swarm.

6.14%

Normal Campaign: Lana's Escape

Complete the Lana's Escape campaign on Normal difficulty or harder.

6.14%

Normal Campaign: Tears for Tarnor

Complete the Tears for Tarnor campaign on Normal difficulty or harder.

6.46%

Normal Campaign: Paranoia

Complete the Paranoia campaign on Normal difficulty or harder.