CoD: Blops 3

Do I have to buy it to know it is terrible? Or can I play it, or can I watch videos to form that opinion? Can I use my friends opinions to influence my own? Can I use the historical crap fest of COD to be the foundation of my opinion?

I don't know though, I received a warning from some mod who I haven't seen around here in ages saying that since i didn't own an Xbox 3******, I shouldn't have an opinion on Halo so I shouldn't post in the Halo thread. Which to me is ******** because I don't have to own an Xbox to have played a game.