Chapter 2: Underground 17

Map: c17aftermath_underground_01

Items: Medkits, Batterys, Healthvials, Pistol Ammo, SMG Ammo
Weapons: Crowbar, Pistols, Grenades, SMG
Music: Darkness at Noon, Decay Mode, Dark Energy
Characters / Allies: Rebels, Refugees, Medics
Enemies: Headcrabs, Fast Headcrabs, Zombies, Zombie Torsos, Antlions, Zombines, Fast Zombies, Poison Headcrabs, Barnacles

Description:

The Citadel exploded, you're inside the train that got trapped in a Train tunnel, all exits are blocked. Luckly there's a hole in the wall created by a few Rebels who went ahead. You, a couple of other survivers, and the wounded are inside the tunnel. Go on ahead to the surface, find a way out of the Underground Tunnels. Careful, it's infested with Headcrabs, and Zombies.

Map: c17aftermath_underground_02

Items: Medkits, Batterys, Healthvials, Pistol Ammo, SMG Ammo, Shotgun Ammo, .357 Ammo
Weapons: SMGs, Shotguns, .357 Magnum, Grenades, SMG Grenades
Music: Radio, Neutrino Trap, Nova Prospekt, Message for the Archvile
Characters / Allies: Dying Rebel
Enemies: Fast Headcrabs, Zombies, Zombines, Headcrabs, Poison Headcrabs, Barnacles, Poison Zombies, Fast Zombies, Antlions, Antlion Workers, Zombie Torsos, Fast Zombie Torsos, Antlion Grubs

Description:

Still underground, still trying to escape. What are these mysterious earthquakes? Also, there are Antlions camping around the Underground, setting up a nest.

Map: c17aftermath_underground_03

Items: Medkits, Healthvials, Batterys, Pistol Ammo, .357 Ammo, Shotgun Ammo, SMG Ammo
Weapons: SMGs, .357 Magnum, Grenades, SMG Grenades, Pistol
Music: Nectarium, On a Pale Horse, DOOM
Enemies: Antlion Grubs, Poison Headcrabs, Antlions, Antlion Workers, Antlion Guardian (not killable, but chases you)

Description:

The Antlions are building nests in the underground. Where is the way to the surface?

Map: c17aftermath_underground_04

Items: Medkits, Healthvials, Batterys, Pistol Ammo, .357 Ammo, SMG Ammo, Shotgun Ammo
Weapons: SMG, Pistol, .357 Magnum, Shotguns, Grenades, SMG Grenades
Characters / Allies: Hopper Mines
Enemies: Antlion Grubs, Antlions, Antlion Workers, Zombines, Zombies, Poison Zombies, Fast Zombies, Antlion Guard (killing it is opitional)
Music: What Once Was Lost, Self Destruction

Description:

Continueing to find the way to the surface. What are these earthquakes? The Hopper Mines you'll find in this level are already on your side. Those rebels from the train crash must have set them here.