I will not negotiate with the Undead!

Raised your Chain Count to at least 10

Scourge of zombiekind

Raised your Chain Count to at least 20

You've got red on you

Raised your Chain Count to at least 30

Zombies, man, they creep me out!

Reached Wave 10 in Horde Mode – Waves of Despair

You're going to meet Death now...

Reached Wave 10 in Horde Mode – No Sanctuary

You're going to have to work for your meal

Reached Wave 10 in Horde Mode – Flood of Tears

I'll teach ya how to shoot!

Reached at least Wave 10 in Horde Mode and had the highest score by the end

Guts and glory

Reached at least Wave 10 in Horde Mode and had the most gold medals at the end

Got your back

Helped out companions under direct enemy attack at least 50 times

A friend in need

Revived injured companions at least 50 times

Got the killshot!

Landed the final blow on at least 20 Super Elites in co-op

Down but not out

Killed at least 20 enemies while incapacitated

Man, you sure know a lot about monsters

Successfully did everything you were asked by Survivors

Gratuitous violence from the lot of you

Played as every playable character

Just in case we make it

Hunted down every last hidden Gold Bar

They must be destroyed on sight!

Spotted and destroyed every Bottle of Blood

You have...death around you

Reached Wave 10 in Horde Mode – Dead End

They're coming to get you, Barbra!

Reached Wave 10 in Horde Mode – Dead Man's Bluff