Killzone co-op!!
http://blog.eu.playstation.com/2014/05/16/killzone-shadow-fall-intercept-dlc-adds-online-co-op-mode/
What I've been waiting for... looks like I might need to get a refund... doesn't sound like survival at all like they made it sound like @E3 and launch... sounds more like BF3 co-op which I didn't enjoy