Plaga Undead

Plaga Undead are a variation of the Undead that appear in Resident Evil: Retribution. These creatures were created by the Umbrella Corporation by injecting normal Undead specimens with Las Plagas parasites. The Plagas made the zombies more intelligent and susceptible to control, turning them into ideal soldiers.

History
Six years into the Global T-Virus Pandemic, Umbrella had expanded its bio-weapons research to include parasitic organisms that could enhance the performance of their soldiers. They began implanting their newly-created Las Plagas parasites into Undead specimens and met with positive results: the parasites reduced the zombies' rate of decay, enhanced their intelligence and made them docile, allowing Umbrella to modify the subjects further with computerised control systems that would allow the Red Queen artificial intelligence to control them.

At the Umbrella Prime bio-weapon testing facility in Russia, the Red Queen utilised several squads of Plaga Undead in the Moscow test environment. As Leon Kennedy and his team of anti-Umbrella rebels searched the complex for Alice, they were attacked by the Plaga Undead which demonstrated the ability to use tools and weapons, even driving vehicles. Two members of Leon's team were killed before Alice appeared and helped the team escape.

Abilities
With their increase in intelligence, the Plaga Undead were capable of using various weapons and tools. They were shown to be capable of wielding machine guns, bazookas, even chainsaws. They could even operate machines and vehicles as they were seen driving Jeeps and motorcycles.

With their Undead physiology, the Plaga Undead could be highly effective as soldiers. Since they could only be killed by destroying the brain, they were capable of fighting even after sustaining injuries that would kill or cripple a normal human.