The other player assumes the role of Sheva, Chris Redfield's new partner in the BSAA. They are in Africa investigating a "bioterrorism incident."
The two characters were shown working together to take down a variation of fast and slow zombies. Gameplay resembled Resident Evil 4, with the final reveal being a chainsaw enemy reminiscent of the sack-headed enemies seen in the previous title.
Co-op... thank god!
Hope it's not like RE-Online.