Albert Wesker vs. Alex Mercer

Poll for my second Warhammer 40K army is currently started. I'm making my second army, and it's the space marines. But what chapter are they? The first to guess correctly gets to decide what company of that chapter my army is (except the 1st and reserve companies), and the first four get to have the Captain, the two Lieutenants, and the Dreadnought named after them.
The greatest, deadliest, longest running antagonist in Resident Evil History against the shape shifting beast of Prototype. Albert Wesker and Alex Mercer, who wins and who dies?