Resident Evil 6 - 31 - You Have Your Father's Eyes

A mercenary-for-hire, Jake Muller, and his merc buddies all take a dose of an experimental “performance enhancer” given to them by “some lady”. It turns out they all just shot up with the C-virus. No need to worry, though. Jake has antibodies that make him immune to the virus. Unfortunately for him, some people other than the government want those antibodies.
Jake and Sherry meet up with a group of B.S.A.A. troops. They're not the only ones showing up to this meeting, though. A giant B.O.W. is let loose on the group and they have no air support! They'll have to destroy the anti-air turrets if they want any assistance.