Fixed some bugs.
Screenshots may differ a little from the map, but not much.

Added a new room to get past the Combine forcefield.
Added crouch cover hint nodes for NPCs.
More optimization.
Fixed some bugs.

Added more cables.
A new Storage area.
A new room.
Added even more details!
Fixed many bugs.
Turned bloom up a little more.

Enjoy!

Removed weird ramp area.
Added more details to the tunnel highway.
Expanded one Combine airlock.
Added more detail to the ceilings.
Added other details.
Moved the boiler room to another area.

Extended the map in some directions.
Added another Combine checkpoint/airlock.
Fixed the weird map glitch bug.
Added more Combine crates and equipment.

Combine forcefield is now only toggle-able from one side. It no longer blocks bullets. It now allows NPCs and physics objects through.
Added more Combine equipment. Such as: Combine radio, different Combine crate variants.
To get past the Combine forcefield you have to climb onto the vents and crawl over it.