I hope this isn’t a spoiler for anyone, but the all new Mantis (Mech), looks like it will be usable in multiplayer! Thanks to EagleBurn on Reddit for posting this screenshot.
Also it looks like there will be 3 loadout options for Infected players in the new Gametype, Flood.
Unknown (Hunter?), Stalker, and Lurker . Thanks to E1Dav1d on Reddit for posting.