Don't put words in my mouth. I never said that I purchased Halo 4 to replay* Halo 3. Not everyone enjoys team slayer. I hate it because I have to rely on my teams ability to shoot and kill in order to win the match. I have always enjoyed ffa slayer. So did a lot of other people. 343 should had added more than just team slayers. Regicide is absolutely terrible in my opinion. It may be ffa, however, it doesn't work the same way slayer did.
Adding ffa slayer does not make it a remake, you moron. By your logic, Halo 4 is already a remake of Halo 3 because it has infinity slayer, big team slayer, king of the hill, ctf, and oddball.