Unlocked: Sep 14, 2012 9:35pm
Submissive
Put the can in the trash.
Unlocked: Sep 14, 2012 9:45pm
Malcontent
Escape the apartment block raid.
Unlocked: Feb 17, 2013 3:46pm
What cat?
Break the mini-teleporter in Kleiner's lab.
Unlocked: Sep 14, 2012 9:57pm
Trusty Hardware
Get the crowbar.
Unlocked: Sep 15, 2012 10:36am
Anchor's Aweigh!
Get the airboat.
Unlocked: Sep 15, 2012 11:09am
Heavy Weapons
Get the airboat's mounted gun.
Unlocked: Sep 15, 2012 11:22am
Revenge!
Destroy the hunter-chopper in Half-Life 2.
Unlocked: Sep 15, 2012 11:37am
Blast from the Past
Find the HEV Suit Charger faceplate in Eli's scrapyard.
Unlocked: Sep 15, 2012 11:38am
Zero-Point Energy
Get the Gravity Gun in Black Mesa East.
Unlocked: Sep 15, 2012 12:52pm
Hallowed Ground
Escort Gregori safely through the church cemetery.
Unlocked: Sep 15, 2012 1:47pm
Targetted Advertising
Pin a soldier to the billboard in chapter Highway 17.
Unlocked: Sep 15, 2012 1:22pm
Where Cubbage Fears to Tread
Defend Little Odessa from the gunship attack.
Unlocked: Sep 15, 2012 3:02pm
One Man Army
Destroy six gunships in Half-Life 2.
Unlocked: Sep 15, 2012 3:17pm
Bug Hunt
Use the antlions to kill 50 enemies.
Barnacle Bowling
Kill five barnacles with one barrel.
Vorticough
Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Two Points
Use DOG's ball to make a basket in Eli's scrapyard.
Zombie Chopper
Play through Ravenholm using only the Gravity Gun.
OSHA Violation
Kill 3 enemies using the crane.
Keep Off the Sand!
Cross the antlion beach in chapter Sandtraps without touching the sand.
Flushed
Kill an enemy with a toilet.
Warden Freeman
Survive the second turret standoff in Nova Prospekt.
Follow Freeman
Gain command of a squad of rebels in the uprising.
Radiation Levels Detected
Get through the toxic tunnel under City 17 in Half-Life 2.
Plaza Defender
Survive the generator plaza standoff in chapter Anticitizen One.
Counter-Sniper
Kill all of the snipers in City 17.
Fight the Power
Shut down the supression device by disabling its generators.
Giant Killer
Survive the rooftop strider battle in the ruins of City 17.
Atomizer
Disintegrate 15 soldiers by throwing them into a Combine ball field.
Lambda Locator
Find all lambda caches in Half-Life 2.
Hack Attack!
Kill five enemies with a Manhack.
