Halo 4 is obviously one of the best halo games to come out! (The only reason I do not say the best is because I dont want any of those arguments here)
The reason you loved the previous halos and not this one is because you cant learn how to adapt. You remember being “unstoppable” at halo CE with a over powered pistol, Halo 2 with black and blue dual weilding, and a quick fire sniper with no bloom.
The game has become BETTER! You need to become better with it! Stop trying to relive the glory days, its not as easy to run things as it used to be… IT TAKES MORE SKILL!