Everything is done except for some collectibles and maybe some Ripper and Marauder camps.
Some aspects are clunky, but overall I enjoyed the gameplay a lot and the story was good.
I'm biased because I like shooter and zombie games, but I would recommend grabbing the game at a discount.
It's a must-play, especially if you like zombies.

Had a fun time. The game is super stiff, and the story is ok enough.

It was such a good game... Sadge