I disliked halo 4's enemies, promethean knights are pretty much my most memorable enemy due to how long they took to kill. Playing the game on legendary solo it felt as if each promethean knight was a mini boss from the game called "Destiny". And don't get me started on the multiplayer, it was cool until I got to max rank, but it wasn't a healthy environment for forge or custom games which really hurt the replay value in my opinion.