EnvoyOfDestinyZ

Idle Sentries Finish any level with five Sentry guns in your inventory.

Tank Take 500 damage without dying on 'Determination' single player mission.

Hidden Treasure Find all 'secret' collectibles.

Into the Kill Zone Kill 20 aliens with one sentry gun.

Battle-hardened Complete all single player levels 1-5.

Regicide Destroy the alien queen.

The Informed Collect all logs through out the game.

At Your Mercy Kill a stunned alien with a Frag Grenade (in single player).

Frag-master Use a Frag Grenade to kill 5 aliens at the same time (in single player).

Light 'em up! Kill 5 aliens with one shot of Project X (in single player).

K.I.A. Locate the bodies of Vance and Barnes.

Exterminator Kill 1000 aliens in single player.

Recon Unit Complete any single player level with the waypoints turned off.

Hardcore Complete any single player level using only the Blaster and Grenades.

The Initiated Complete the prologue in single player on any difficulty level.

Immobilised Use a Stun Grenade to stun 5 aliens at the same time (in single player).

Hard Up? Sell any item (in single player).

Exploding Fist Kill 3 burster aliens with one melee attack (in single player).

Grave Robber Collect 50 items or weapons from human corpses (in single player).

Bigger is Better Purchase any weapon upgrade (in single player).

Version 2.0 Purchase any item upgrade (in single player).

Systems Crash Kill Mia.

Bigger Isn't Always Better? Kill a sentry gun with the Blaster.

Shattered Smash 10 windows (in single player).

Sunny Side Up? Kill an alien egg using the melee attack (in single player).

Lost? Access the map screen (in single player).

Material World Buy every upgrade.

Survivor Stay alive for 8 minutes on any of the Survivor mode single player levels.

Super-Sleuth Find all ‘secret’ collectibles.

Old Soldier Complete all single player levels 1-5.

Praemonitus Praemunitus Collect all logs through out the game.

Vital Statistics Finish ‘Primed’ single player level with 300000 or more overall score.

Incy Wincy Defeat Arachno-Morph.

Doctor in the House Heal yourself for 200 hit points using health kits.

Ultimate Boom Stick Purchase the Damage upgrade for the Rocket Launcher.

War of Attrition Kill 1000 aliens in single player.

Goodbye Cruel World Blow yourself up with a Frag Grenade.

Smackdown In single player story mode, melee one of each type of alien.

Rocketman Kill a sentry gun with one rocket.

Protectionist In single player story mode, purchase 5 Hardened Armor items from the Intex Vendor.

Deadly Assassin Without taking damage kill 50 aliens in single player.

Medic! Purchase the Health Kit Upgrade.

Pathfinder Complete a single player level with Waypoint Display turned off.

Octo-who? Defeat Octo-Morph.

Tormentor Deal 200 damage to one alien.

Safety First? Save the game 5 times in single player story mode.

Deadly Combo Kill a stunned alien with a Frag Grenade.

Hardcore Pawn Sell any 10 items or ammuntion at an Intex Vendor.

Sentry Duty In single player, use a sentry gun to kill 20 aliens.

No One Left Behind Complete the game without a single agent bleeding out