Complete "High Octane" on any difficulty.
Complete "Church of the Damned" on any difficulty.
Finish a mission while carrying the Sludge Seed.
Complete a campaign mission without any of your teammates getting incapacitated.
Collect 10,000 Sludgite during campaign missions.
Kill 100 sludge tendrils.
Open a stash using the vehicle's winch.
Avoid capture by a Snare after being its target.
Complete "The Drop" on any difficulty.
Kill 50 enemies with a single heavy weapon without switching between weapons.
