Tvtropes has the following to say about RE: Dead Aim:
It is said that one of the proposed concepts for RE4 did have zombies and Umbrella in it, still alive and kicking, but that version of course was thrown out the window. And another version famously became Devil May Cry. For the sake of conversation, could it be possible that when I'm playing Dead Aim, I'm actually playing a tweaked prototype of Resident Evil 4?
Expy: Dead Aim was based on a rejected proposal for Resident Evil 4, with Bruce McGivern and Fong Ling being obvious stand-ins for Leon S. Kennedy and Ada Wong.
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