GG rushed the hell out of this game, released it with no features but at least they are still working on it.
Tomorrow the patch will ad new intercept menu, 2 new co op modes (one is hardcode mode overkill). The long awaited CLAN SYSTEM will also be released. And some other fixes.
I think people should give it a try or get back into it if you got bored of it. Don't be afraid to make a team and play clan matches. Playing big public games created by GG is boring, horrible settings and no challenge. Get competitive to see the real warzone. I know KZ is slower than casual COD games but its still ADS gameplay so in a way kids nowadays should feel at home.
GG is also hosting a clan tourney with prizes. You can sign up your KZ clan here http://community.killzone.com/t5/Killzone-Shadow-Fall-PS4/Killzone-Clan-Tournament/td-p/1551887
KZSF is sadly the best FPS you can play right now on any current gen console. Now we can finally play the real deal ^^