Unforeseen Consequences

Unforeseen Consequences is the third chapter of  Half-Life.

Taking place right after the Resonance Cascade, it features a wrecked Anomalous Materials and a slightly less damaged coolant reserve.

Architecture

The architecture is largely the same as the previous chapter, although in far greater disrepair. Doors should be ajar and test equipment should be in pieces, especially around the spectrometer. As the player gets closer to the coolant reserve, the facility should be slightly less damaged and most machinery should not be in pieces.

Environment

Players should feel an acute sense of danger. Lighting and unexpected explosions create a large portion of the atmosphere in Valve's default maps. Only the equipment needed to progress, such as lifts, should be functional or equipped with an emergency service ladder for the player to use.

NPCs

As in the previous chapter, scientists and security guards should be found, albeit scattered. Dead scientists and blood decals are also common, but should be proportional to the number of scientists found in the last chapter.

The first of the aliens are found here. Headcrabs should be found popping out of vents early on. Vortigaunts and bullsquids should be placed later and sparingly. Zombies should also be placed sparingly and less often as the player gets through the level.

Maps

The following .bsps comprise this chapter.

• c1a0c
• c1a1
• c1a1a
• c1a1b
• c1a1c
• c1a1d
• c1a1f

Note: c1a1e does not exist in the game files.

Note: In Half-Life: Source, c1a1g exists as a split between where Gordon exited the tram and where he entered Sector C. It replaces a part of c1a1f and is connected to it.

Note: Some maps aren't ordered alphabetically start to finish. For instance, c1a1a transitions to c1a1f.

Gallery

• 

  Aftermath of the Anti-Mass Spectrometer.

• 

  Much of the brush geometry previously placed in the labs should be ajar and damaged

• 

  Lighting and explosions set the mood for the player

Expand/Collapse  Half-Life ChaptersExpand/Collapse
Hazard Course t0a0	Black Mesa Inbound c0a0	Anomalous Materials c1a0	Unforeseen Consequences c1a0c
Office Complex c1a2	"We've Got Hostiles!" c1a3	Blast Pit c1a4	Power Up c2a1
On a Rail c2a2	Apprehension c2a3	Residue Processing c2a4	Questionable Ethics c2a4d
Surface Tension c2a5	"Forget About Freeman!" c3a1	Lambda Core c3a2	Xen c4a1
Gonarch's Lair c4a2	Interloper c4a1a	Nihilanth c4a3	Endgame c5a1