Ep3 Game

I finished the Ep3 game a week ago,but i still have a question.If you get all level secrets,will you get special extra´s?

i don't think so, but I still have like 3 to find.... heres hoping 🍺

i seriously don't think so either, most of what u can unlock u could see u could unlock it when u first play (i.e the co-op missions, bonus and video