u/Oxnix2112

I ordered a used copy of Zombicide 1st edition + the 2nd edition complete upgrade kit. I paid less then half of the price of the 2nd edition.

Can someone explain what is the difference between what I will get and the actual 2nd edition? Will I be able to play the same way that I would had I bought the 2nd edition. I downloaded the 2nd ed PDF. I have never played Zombicide before so I am not sure if I can take the 2nd ed PDF and just start playing or not. Thanks!