PS - Ive linked/sync my account to residentevil.net already but not seen anything etc
You have to participate in RE.NET events that will award you tickets for EX3 costumes if the goals are met. Go to RE.NET and you'll see a link for "EX item list". You can view all of the EX3 costumes there.
Must buy RE: Revelations, The Last of Us, & Beyond: Two Souls! http://www.ps3trophies.com/card/7/gmoshier.png