Can't decide if I want to purchase this game yet, even after playing the Beta

I haven't had much time this weekend to get far into the beta so I haven't even touched the Dark Zone.

So I have two questions, which might have been answered by Ubisoft (sorry if they did, I haven't kept close track of this game) :

1. How big is the single/coop experience going to be ? From what I have tried it looks amazing so that alone might be a good reason enough to buy the game.

2. How's your experience so far into the Dark Zone ? Destiny had some nice pve end-game (raids), if this game only has the DZone and it ends up being a huge grief fest like I fear it will be, then I might just stick to Destiny and not bother with this game. From your experience do you think they will discourage stupid behaviors like camping a chopper and going for the kill at the last second or straight up griefing ?