Oh sweet Jesus! Kill it! Kill it!
That's my initial reaction to this little clip. I don't know what it is. I don't know what they're saying. I just know that this thing needs to be found and eradicated. Maybe these guys came across an undiscovered species, some sort of humanoid that would blow the minds of biologists 'round the globe and rewrite 'On the Origin of Species'.
I don't care. Shoot it in the face.
I don't know why they've dubbed it a 'fallen angel'. My first instinct is that it's the dreaded chupacabra. Or maybe the troglodytes from the Descent. Or is it Powder, gone feral after years of isolation in the woods of Spain?