I was very surprised to see that there are 119 with 1600 Gamerscore. And even more surprised to see how many secret ones there are. I usually hate multiplayer achievements, but I am strangely liking these ones. They seem more doable than most.
The secret achievements are the campaign one’s, I stumbled across them somewhere, but liking achievements, shame there isn’t one involving blowing up chickens lol
Majority of the secret achievements are all tied to campaign (can see them on TrueAchievements).
Overall though, I’m liking them. Doesn’t seem like any of them are incredibly specific which I’m happy about.
Can see myself getting them all through playing naturally over time which is perfect! I’m definitely going to be hunting them as the opportunities present themselves.
I actually did that just in case there was, lol. As well as smash the fruit 
I thought they were tied to the Campaign. It would make sense given that they would potentially be spoilers.
So glad there are achievements for MP, hopefully they add more in the future
Me too, snipers, rockets tea bagging a chicken, everything.