They cant really add any new weapons unless they are sentinel beams and other forerunner technology, and it already looks like they have a jet pack or at least that is what the trailer seemed to have. If you want to make the game successful...just make the game, people are going to buy it as long as it has the essentials. Campaign, Multi-player, custom games, FORGE. This forum shouldn't be named "HOW TO MAKE HALO 4 SUCCESSFUL" It should be named How to make halo 4 playable after the 1st month. I am a big fan of halo,but if my friends decide to play modern warfare then it gets boring playing fat kid by yourself. i think firefight and forge should join forces into an awesome combination that would rival that of Nazis zombies...just think about the possibilities. editing spawns for grunts, elites, and maybe the FLOOD if they choose to add it. And keeping the old weapons wouldn't hurt neither.