Alien Swarm achievements

18.25%

Short Controlled Bursts

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

18.61%

Ammo Technician

Deploy 10 ammo stashes that are used by other marines.

20.70%

Armory Access

Unlock all the available weapons.

21.13%

Blast Radius

Kill 6 Swarm with a single Grenade.

24.50%

Pyrotechnician

Kill 250 Swarm with a Flamethrower.

26.53%

Electro-Stunned

Stun 6 Swarm with a single Stun Grenade.

26.92%

Prototype Professional

Kill 250 Swarm with a Prototype Rifle.

28.94%

Group Heal

Heal all 4 marines with a single Heal Beacon.

28.94%

Assault Specialist

Kill 250 Swarm with the Assault Rifle.

29.01%

Autogun Expert

Kill 250 Swarm with an Autogun.

30.22%

Normal Campaign

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

30.36%

Gunslinger

Successfully perform 5 fast reloads in a row.

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