Half Life 2: Dominion

Elite Overwatch Training Facility - A hermetically sealed environment where selected soldiers undergo enhancement procedures and combat conditioning. Trainees cycle through simulated urban warfare scenarios against holographic resistance fighters, while Combine chemicals suppress emotional responses and amplify aggression. Memory replacement chambers implant tactical knowledge directly into subjects' cerebral cortexes. The facility features gravity manipulation chambers to condition soldiers for zero-G operations and interdimensional travel. Success rates are low—only 30% of candidates survive the full enhancement protocol, but those who emerge become the feared Elite Overwatch, identifiable by their distinctive white armor markings

The facility is a stark, metallic structure with reinforced walls and a series of high-tech chambers. Holographic projectors create lifelike urban environments, while the air is filled with a faint hum of machinery and the occasional flicker of energy fields.