P X _ C O L O N Y

In this storage room, the marines have to repair some wiring while fending off hoardes of aliens

The upper lobby with monitors showing the power status of the colony

One of the vault locker rooms after being flooded

The cavern, linking the lower and upper sections of the map

This glass lift is one of the coolest lifts I've seen and certainly that I've made for Half-Life

(COME HERE FROM A SEARCH ENGINE? RELOAD THE FRAMES!)