The charging tentacled beasts hit the floor with a boom after taking a liberal peppering from several S.H.I.E.L.D. agents' guns. Their bodies slid and tumbled across the uneven floor and heaped up against a wall.
Jack ran over to the lifeless creatures and pulled out a small device. He held it out and one of the beast's was enveloped in a sort of dull holographic grid. The light faded and a soothing voice from the small machine spoke.
Holographic Specimen scan complete. Request DNA sample. Please comply.
A small tweezer-like extension appeared from the top of the device. Jack poked it into one of the creature's tentacles.
DNA sample acquired. Request catalog location for file.
"Catalog in file designation: Lovecraft..." Jack said, seconds before more gunfire erupted behind his back. He drew his firearm and turned just in time to be sent crashing through the thin stucco walls by the weight of another one of the rampaging tentacled buffalo-things.
Jack quickly transformed, then ripped, tore, and gnawed at the beast until it collapsed. He stepped back through the wall-hole he'd created seconds earlier; reverting to human form as he popped his neck and rejoined the group, who were still firing on incoming targets.