Soap, Ghost and Gaz just cleared out a lab.

when they entered a room with several danger signs, they saw a Wide but short cage.. with angel black feather's around the room and blood

That's when they saw the sign next to the cage. "Fallen Angel". And looked at you (the experiment)with blood all over you in horror and disbelief

Soap: W-what f#ck is that...

Gaz: Fallen Angel? how is that possible!?

Ghost: Be careful this creature might kill us point a gun at you