Most of us have seen that Halo 4 wasn't how it was expected to be. 
It did have a few ups and downs. But does that make you wanna quit playing it? 
Apparently so,the only thing I see you people posting is Halo 4 has problems,this and that. 
  
Why don't you just enjoy what 343i made for us? 
I mean sure there was a few mistakes in it but,everyone makes mistakes and learns from them. 
So obviously Halo 5 and 6 will be better. 
I mean I am very grateful about Halo 4,it's  just a starter so stay in the game. 
No use in quitting it when they are just getting started .