You begin to wake up, with no memory of how you got to this.. foundation.

The SCP Foundation, specifically. Alarms are blaring, the light red ones meaning that the Chaos Insurgency raided the SCP Foundation. There's screams, then they all die down.

You hear a gunshot, then a thump infront of your containment cell, which is an MTF guard. He's dead.

You have no clue who he is.. and then you hear stomping. Metal boots, six of them rushing. They stop at your door.