First off, if you haven't played Resistance 1 or 2 and would prefer to not to read any spoilers, don't read this. If you have played through Resistance 2, then it's safe to proceed.
This afternoon was the multiplayer reveal for Resistance 3, and while there was the opportunity to play the single player the big news is that the multiplayer in Resistance 3 will have 16 players max. Of course, I think it's just as important that they brought back the weapon wheel - yes, return of the weapon wheel in R3!
Four years after the close of Resistance 2 you join Jospeh Capelli in his hometown of Haven, Oklahoma. Creative Director Marcus Smith cited a "focus on humanity and focus on the individual stories." Four years is just enough time for the Chimera to set their sites on Oklahoma, a cue for you to fight them off. There was mention of the campaign single-player and co-op, but no further discussion of co-op.
All the multiplayer maps are set outside the United States so you will be seeing areas not appearing in the single player campaign - which is centered on the U.S. The multiplayer map shown was set in the Republic of Chad, and featured team deathmatch - later they will announce the objective-based game modes. Asked about vehicles, Insomniac's Senior Community Manager said there will be "no drivable vehicles in the multiplayer".
With 16 players max in the multiplayer the maps are scaled accordingly with the ability to choose a smaller map. Smith touted the ability to "get much more intimate with our enemies" and described the game as a "choice-based shooter". with more open level design .
Abilities are passive and active with the former catering to your play style and offering things like stat buffs. Active abilities on the other hand can grant health or ammo to allies (Ammo Beacon), enhance ally radar (Radar Beacon), make a doppelganger appear or electric hula hoop that causes enemies firing on you to take damage when a shot hits. By earning points you can customize your loadouts. Power-ups in MP are species-specific: an electric riot shield for humans and invisibility for Chimera. Each weapon has primary and secondary fire, and weapons upgrade.
Multiplayer Beta coming to PSN later this year.
(and, like the inFAMOUS 2 event, no photography allowed)