There is no guide for this game yet. But apparently it is EASY POINTS!

Credit goes to deadly donjon in our forums for the tip.

Blue Leg - 50 points

Complete the game on Easy

Charlie Don’t Surf - 150 points

Complete the game on Normal

Shell Shocked - 200 points

Complete the game on Hard

Host - 10 points

Complete Mission 1 on Normal

Quarantine - 10 points

Complete Mission 2 on Normal

Infection - 10 points

Complete Mission 3 on Normal

Refuge - 10 points

Complete Mission 4 on Normal

Trip - 10 points

Complete Mission 5 on Normal

Hunted - 10 points

Complete Mission 6 on Normal

Captured - 10 points

Complete Mission 7 on Normal

Payback - 10 points

Complete Mission 8 on Normal

Evac - 10 points

Complete Mission 9 on Normal

Whiteknight - 10 points

Complete Mission 10 on Normal

FUBAR - 20 points

Complete Mission 1 on Hard

Deep Serious - 20 points

Complete Mission 2 on Hard

Dinky Dau - 20 points

Complete Mission 3 on Hard

A Laugh a Minute - 20 points

Complete Mission 4 on Hard

BOHICA - 20 points

Complete Mission 5 on Hard

Cut a Chogie - 20 points

Complete Mission 6 on Hard

Bush Master - 20 points

Complete Mission 7 on Hard

Snoop 'n’ Poop - 20 points

Complete Mission 8 on Hard

Zone and Sweep - 20 points

Complete Mission 9 on Hard

Bookoo Hostiles - 20 points

Complete Mission 10 on Hard

Bok-Bok - 15 points

Beat down an enemy

Lots of Bok-Bok - 15 points

Beat down 15 enemies

Caca Dau - 15 points

Score a decapitating head shot

Caca Dau x 15 - 15 points

Score 15 decapitating head shots

Fire for Effect - 15 points

Find and pick up every weapon

Gun Slinger - 15 points

Complete a level firing only a pistol

Take it Like a Man - 40 points

Complete a level without dying

Natural Resistance - 35 points

Complete the game without being killed by an Infected

Hard Boiled - 15 points

Kill 3 enemies with one pistol clip

Field of Fire - 15 points

Kill 5 enemies with one AK47 clip

Army Issue - 15 points

Kill 5 enemies with one M16 clip

Cook-Off - 15 points

Kill 15 enemies with one belt of a non-mounted Heavy Machine Gun

Boom Baby! - 15 points

Kill 3 enemies with one rocket or grenade

Cutting a path - 15 points

Kill 15 enemies with the machete

Free Fire Zone - 15 points

Kill 150 enemies

Can’t Quit You - 15 points

Complete the game twice

SNAFU - 15 points

Dismember 50 enemies