HL-Isolation mod for Half-Life

Story Isolation carries on from where Half-life left off. After being given two options by the G-Man, to work for his Employers or re-face your own personal holocaust. with really, little choice, you step through the portal. All you can hear is your heavy breathing as you stare into darkness. Then a slow rumbling begins and before you know it you are thrown out of the Portal to find yourself in an Elevator moving slowly down its dark shaft. When the Elevator eventually reaches to a halt, the doors open to a dark gloomy corridor, you can hear the sound of machinery and steam hissing sharply from pipes above you. You slowly step out of the Elevator and walk down the corridor, reaching the end you are mildly startled to find a scientist greeting you on his way to the Elevator you just arrived in. You recognize him as one of the Scientists you met in reception from Black Mesa before the disaster. How did he get here? Why is he here? Why are you here? What the hell is going on? Not certain...