IIRC, it is a four person coop horde mode. Class based I think. It can be standalone or DLC. I bought it a year after release and finding full matches was spotty then. But it was a shit ton of fun when I got a full match. Regular Killzone multiplayer was slightly better, but different.Excuse my ignorance, but what is Killzone Shadow Fall Intercept? Is it the game + some DLC?