MorbidCuriosity-

One Smart Cookie Complete one optional tomb.

Bookworm Find 25% of all documents.

Predator Kill 50 enemies with the bow.

Down and Dirty Perform 15 finishers.

Sharp Shooter Perform 50 headshot kills in the single player campaign.

Opportunist Kill 25 unaware enemies.

Gunslinger Kill 35 enemies with the pistol.

Relic Hunter Collect 25% of all relics.

Scrounger Collect 5000 pieces of salvage.

Picky Loot 200 enemies.

A Survivor Is Born Complete the game.

Clever Girl Purchase all skills in one category.

Tastes Like Chicken! Kill and loot 10 small animals (rabbits, chickens, rats).

Looking for Trouble Find 25% of GPS caches.

Epic Fumble Force an enemy to drop dynamite that kills two people when exploding.

Equalizer Kill 75 enemies with the rifle.

Unfinished Business Complete one challenge.

Crab Cakes Kill FeeFee the crab.

Widowmaker Kill 40 enemies with the shotgun.

100 Headshots Kill 100 Enemies with Headshots

Now We're Getting Serious Fully mod and completely upgrade any weapon.

50 Kills: AK-47 Kill 50 Enemies with the AK-47

Historian Find 75% of all documents.

30 Kills: MP40 Kill 30 Enemies with the MP40

Charted! - Easy Finish the Game on Easy Without Changing the Difficulty

50 Kills: 92FS-9mm Kill 50 Enemies with the 92FS - 9mm

Intellectually Superior Complete all optional tombs.

Archaeologist Collect 75% of all relics.

50 Kills: M4 Kill 50 Enemies with the M4

Feather Duster Kill and loot 10 flying animals (crows and gulls).

20 Kills: Wes - 44 Kill 20 Enemies with the Wes - 44

Run-and-Gunner Kill 20 Enemies by Shooting from the Hip (without aiming)

Proficient Fortune Hunter Find 30 Treasures

Bag Full O' Cache Find 75% of GPS caches.

50 Kills: Micro-9mm Kill 50 Enemies with the Micro-9mm

30 Kills: Dragon Sniper Kill 30 Enemies with the Dragon Sniper

Lethal Purchase all skills in all categories.

250 Headshots Defeat 250 Enemies with Headshots

20 Kills: Desert - 5 Kill 20 Enemies with the Desert - 5

50 Kills: Moss - 12 Kill 50 Enemies with the Moss - 12

30 Kills: Mk-NDI Kill 30 Enemies with Mk-NDI Grenades

Charted! - Normal Finish the Game on Normal Without Changing the Difficulty

Boom Goes the Dynamite Shoot a bundle of dynamite out of the air.

No Stone Left Unturned Find all documents, relics and GPS caches.

Professional Fortune Hunter Find 40 Treasures

Brutal Slugger Kill 20 Enemies with Brutal Combo

Brutal Expert Kill 5 Enemies in a Row with Brutal Combo

30 Kills: M79 Kill 30 Enemies with the M79

Expert Fortune Hunter Find 50 Treasures

The Professional Fully mod and completely upgrade all weapons.