So I F.I.N.A.L.L.Y. Was Able To Get The Killzone 3 DLCs Working After A Month Of Searching. I Found Them On PSNDL. I Compiled Them And Uploaded Them On Mediafire (Instructions And
PS3 NO-INTRO USA - PART 4 : Free Download, Borrow, and Streaming : Internet Archive
PSNDL v2 (Free PSN et DLC) par Jamesst20 disponible