BLAST PIT; Half Life MMod Part 3
1May 16th, 200X, Black Mesa Facility, New Mexico
"Early in the morning, Dr. Gordon Freeman, a recent MIT graduate in theoretical physics, and also a recent employee at Black Mesa, arrives late at the Anomalous Materials lab to participate in an experiment that involves analyzing an alien crystal. After the test goes "unexpectedly" wrong, a catastrophic event called a Resonance Cascade occurs and causes massive dimensional rifts, opening a portal between Earth and Xen. Saved by his HEV Suit", (Hazardous Environment Suit), "from the devastating chaos at ground zero, Gordon leaves the test chamber and is tasked with reaching the surface by Eli Vance and getting help. Soon, he finds out that the facility is infested with dangerous and hostile alien creatures. Arming himself, Gordon starts his journey to the surface."
"As the situation escalates, Gordon finds himself caught between two opposing factions: the hostile aliens, and the Hazardous Environment Combat Unit, a military force dispatched to cover up the incident — including eliminating Freeman and the rest of the Black Mesa Science Team. Throughout the game, a mysterious figure known as the G-Man regularly appears, apparently monitoring Freeman's progress with uncanny serenity. Gordon successfully launches a rocket meant to close the dimensional rifts. This stops the random teleportation of aliens, but also alerts them that their connection to Earth is limited, causing a full organized invasion by Xen." - Half-Life Wiki
Half-Life | Half-Life Wiki - https://half-life.fandom.com/wiki/Half-Life#Plot