An elite fighting unit, DarkRain are the remnants of U.B.C.S. and U.S.S. units that were loyal to Umbrella Corporation scientist Roderick Lazarus. After the dissolution of Umbrella, those who avoided prosecution or capture joined up with Lazarus, offering them a place where their previous skills would be useful, whilst avoiding the angry arm of the government, or worse, the anti-Umbrella activists like the B.C.K. or even vengeful splinter groups of the B.S.A.A.