Alien Swarm achievements

18.27%

Short Controlled Bursts

Complete a mission with no friendly fire incidents. Four marines must be present in the mission.

18.62%

Ammo Technician

Deploy 10 ammo stashes that are used by other marines.

20.72%

Armory Access

Unlock all the available weapons.

21.14%

Blast Radius

Kill 6 Swarm with a single Grenade.

24.48%

Pyrotechnician

Kill 250 Swarm with a Flamethrower.

26.51%

Electro-Stunned

Stun 6 Swarm with a single Stun Grenade.

26.90%

Prototype Professional

Kill 250 Swarm with a Prototype Rifle.

28.96%

Group Heal

Heal all 4 marines with a single Heal Beacon.

29.00%

Assault Specialist

Kill 250 Swarm with the Assault Rifle.

29.00%

Autogun Expert

Kill 250 Swarm with an Autogun.

30.21%

Normal Campaign

Complete the Jacob's Rest campaign on Normal difficulty or harder.

30.35%

Gunslinger

Successfully perform 5 fast reloads in a row.

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