...at least once
Not the best way to keep warm
Complete Siberian Mayhem on Serious difficulty in co-op with enemy multiplier set to at least x2
From Russia with love
Now it's your turn
Searched for the enemy, found new friends
Kill Draconian Burner with a Burner gun
Kill 10 enemies with one Burner explosion
Embrace the origins
Find every General Brand audio log
Don't ride the tank - become the tank
Through the snow, flames, and alien bodies
The smartest man on Earth
A tooth for a truth
In Mother Russia, you invade the aliens!
Meet the naughty monster
Try a new career
Anything for a reward
Back on the mainland
No complaints. Only skills
No hope for a hopping mob
When passion becomes profession
When passion overcomes the pain
A solution to any problem
You are here to shoot, right?
From granny, with love
Hey, this looks familiar!
Find every Dmitry audio and text log
Find all of the print media notes
Rise and levitate
Defeat Sentry Tower with sole hoverboard firepower
Stay here and kill them all... with a black hole
Kill 30 enemies while riding one Draconian Burner
Kill 5 enemies with one Crossbow shot
Complete the mech sequence and kill all big enemies without shooting
Beat the final boss in Singleplayer on Serious difficulty without loading mid-battle savegames
Complete Siberian Mayhem without learning a single S.A.M skill in Singleplayer
Complete Siberian Mayhem on Serious difficulty in Singleplayer
Rid the monster of its misery
Find half of all the secrets
Find all secrets
Get any medal on Castle of Pain survival level
Get any medal on Horus Sanctuary survival level
Get any medal on Kleer Fortress survival level
Get any medal on Dragon Gates survival level
Get any medal on The Snowrider survival level
Set your spirit free
Get any medal on Monkey Canyon survival level
Get a gold medal on any survival level
