As revealed last week, two of video games' biggest zombie-centric franchises will be bumping uglies when crossover content for the PC versions of Resident Evil 6 and Left 4 Dead 2 hits in in two weeks. This video shows what it looks like when Coach, Nick, Ellis and Rochelle take on the BOWs of Capcom's global apocalypse, with Special Infected enemies from L4D2 popping in to mix things up. Remember this undead mash-up won't cost anything so look for it as an added option on April 5th.