Umbrella Prime

Umbrella Prime was a major location in Paul W.S. Anderson's Resident Evil film series. Appearing in Resident Evil: Retribution, this place was Umbrella's primary bio-weapon testing facility.

Background
Umbrella Prime was a massive laboratory complex built out of a former Soviet Union submarine pen located in the frigid coastal waters of Russia. Here, Umbrella carried out the testing of various bio-weapons they had produced in contained environments as the weapons were too dangerous for testing in the real world.

Umbrella Prime supported four distinct facsimiles of urban sprawls from New York, Moscow, Tokyo and even a facsimile of the suburbs of Raccoon City. During each weapons test, the environments were populated with clones produced from the genetic material of select Umbrella staff (usually members of the company's private military forces) which were subjected to biohazard outbreaks and rampaging bio-weapons. The clones that populated the contained environments were manufactured on an adjacent factory level.

History
After Alice had been captured by Umbrella during the attack on the Arcadia, she was taken to Umbrella Prime for interrogation. She did not remain captive for long as Albert Wesker, Umbrella's former chairman, had arranged for her rescue, sending his spy Ada Wong to retrieve her while a commando unit led by Leon Kennedy planted high explosives to destroy the base.

Alice and Ada were forced to navigate their way through the complex's replicated environments, battling hordes of Undead, cloned Umbrella soldiers and bio-weapons such as Lickers and Axe Men. Before she and Leon's team could escape, they were confronted by the brainwashed Jill Valentine and a malevolent clone of Rain Ocampo, an Umbrella soldier Alice had met in the Hive. After a brutal battle, Jill was freed from the Red Queen's control when the Scarab device on her chest was removed and Bad Rain was plunged into freezing waters swarming with Undead. The survivors then fled aboard a helicopter just as Leon's explosives detonated, flooding Umbrella Prime.

Creatures
Umbrella Prime created and housed the following creatures.
 * Undead - Cloned humans infected with the T-Virus. Most of the Undead within Umbrella Prime were a mutated variant sporting fleshy mandibles that emerged from their mouths. Some had been modified by being implanted with Las Plagas parasites and were capable of operating tools and machinery.
 * Las Plagas - Parasitic organisms that were injected into Umbrella soldiers to enhance their strength, speed and stamina. They could also 'knit' flesh and bone to rapidly heal their hosts.
 * Lickers - Large quadrupedal beasts with extra-long tongues.
 * Axe Men - Humanoid bio-weapons wielding large axes.