This article is about an ACU Trooper in Jurassic World. For the mercenary in Jurassic Park III, see Cooper the Mercenary. Cooper was an Asset Containment Unit trooper at Jurassic World on Isla Nublar in 2015. His team lead by Austin ventured into the jungle accompanied by another team lead by Katashi Hamada. As the two teams approached the I. rex's location, they soon discovered it had torn out its tracking implant. As Hamada inspected the piece of flesh, a drop of blood fell on his wrist. Looking up, he soon discovered that it was only the Indominus' blood dripping from the tree branches above.