Get 100 kilometers travelled hand distance or more.

Completed the mission "Hunting The Firehawk"

Kill 100 Red Dudes with melee weapons.

Kill 6 enemies affected by one Blinding Swarm or Firefly Swarm.

In Campaign, kill 10 enemies in under 3 seconds.

Kill 3 Red Dudes with a single dual Uzi burst.

Clear any level with disappearing arrows modifier.

Kill 100 Red Dudes with a sawed-off shotgun.

Clear any level with One Life modifier.

Completed the mission "Plan B"

Completed the mission "Best Minion Ever"

Completed the mission "My First Gun"

Revive a knocked-downed teammate.