What I have missed a lot from Halo 3 was the various types of basic slayer (regular, BR's, duals). I understand there was slayer and slayer pro in Reach and halo 4, but it isn't the same. In Halo 4, the only games that everyone has the same loadouts in is Team Throwdown, SWAT, Snipers, Grifball, or action sack. Every couple of weeks I boot up Halo 3 to play in those games, where teamwork, skill, power weapons, and positioning were the major factors, not a rock paper scissors of the best armor abilities.