Sandbox gameplay IS Halo

At its core, Halo is about fun, fast paced balanced gameplay. Halo CE understood correctly how to achieve weapon balance across the board.

Halo 4 needs to bring back that feeling, and up the ante, by buffing all weapons to a level that everyone has a chance to suceed, but only if they are skilled

They should start simple with Halo 4, as Bungie did with Halo CE.