What do you think 343 is doing right now? Now that the game has gone gold, what do you think they’re doing? Scripting Halo 5? Taking a break? Other?
Most likely working on DLC.
Marketing stuff. Coding, playing halo 4.
playtesting too see if there are any bugs remaining and if a day one patch is necessary or
working on multiplayer dlc
Depends on who, marketing is working, there is prob a group making a TU for launch, people still working on the 3 waypoints, bs angel’s job is unaffected along with serval others, spartan ops is still being worked on, dlc, ect.
Actually, that’s a good question. I haven’t even thought of that until now. If I had to guess, I would say that they’re taking a well-deserved break. After all, they worked their butts off for three years with this game.
I think there working on Spartan Ops. Maybe taking it easy.
break most likely
A number of them are on vacation, Marketing and Spartan Ops are likely still working, along with a number of other people. It really just depends on who you’re talking about.
Playing Halo 4.
Pretty sure they’re still working hard on getting things ready for launch. 
watching p…irates of the carribean. lol probaby playing halo 4 at home.
Working on Spartan Ops and the DLC Map Packs
I think they are taking a break, they earned it.
Doing marketing/advertising stuff, and preparing a Forge trailer/interview, most likely with IGN.
They most likely have the story of Halo 5 and Halo 6 planned out, so I think they are bugtesting/DLC
Going to the local pub to celebrate and pardon the expression but getting their collective freaks on.