Tell me, dear... how does one play a multiplayer game without having PlayStation Plus on the P4?
Local only?
Oh, I don't know. Maybe take it up with Guerrilla Games or Sony for stating this simple fact on their blog:
"To celebrate the imminent release of our first Free Map DLC on March 4th, we are making the acclaimed KILLZONE SHADOW FALL multiplayer available for FREE to all Playstation® 4 players for a week, starting 3rd of March 5PM PST. Best of all, you will not require PS PLUS to play the Free Access client this week!"
http://killzone.com/...ccess-Week.html