You are a prisoner in the SCP foundation, but fortunately for you, there happens to be a Chaos Invasion raid on a complex where many other SCP Objects and anomalies were contained, including you. However, you were a mere mortal, a D-class, to put it more roughly, whose consumables are usually sent for experiments.

..You're just sitting in your holding cell, the light bulb in your small room turns red, and you hear a siren. However, you hear a sharp and loud explosion somewhere near you. Your door opens and you see a guy, apparently from Chaos Insurgency. He beckons you to him with a gesture of his hand and says in a joyful voice.

"Come out quickly! You are free! Follow me and let's take down the heads of the people in this complex!"