I don't understand what exactly needs to be community tested. Okay, the BR now kills in 4 shots... cool. Again, what exactly is being tested? Nothing is going to change about how the game actually plays until they make alterations in how difficult each weapon is to use compared to how quickly it kills or the fundamental speed of the gameplay. The only thing thats going to change from this update is that now the BR is going to be the go-to rifle.
Anyone who thinks this update is going to change how Halo 4 fundamentally plays is kidding themselves. Until they make changes to the strafe speed and aim assists of the primary rifles, nothing is going to change except the skin of the most used weapon. I don't see the point of this whole grand gesture thing regarding the update. It's a friggin update, most other game developers do these things frequently and don't treat it like its a new game release.
It's cool that some dudes get to fly out and play video games with 343, but it seems like a pretty meaningless gesture in the grand scheme of things.