You might be able to do it with Cruel-style emote messages. It'd be a whole lot harder though

Heh, made it to the Death Zamboni without too much trouble last night :)

I've watched videos of the entire raid, and my impression so far is that once everyone is familiar with the mechanics, it actually requires less communication from the entire fireteam than any other raid.

RoI spoilers:

The bulk of WotM is built around working in pairs, and then coordinating actions across all 6 players from time to time. I think as long as there is 1 mic for each pair of players, you could do just fine.

On a side note, I LOVE the way the raid encourages working in pairs, but doesn't strictly require it at all times. As we entered the 2nd boss fight, we naturally split into the same pairs we had created during the first encounter. When you spend substantial time working closely with a single wingman like that, you quickly become familiar with each other's playstyles, how and when they might use their supers, etc. It cuts down on the "ok, what position is everyone going to play?" discussions that bog down Kings Fall so much. Me and my wingman last night quickly settled into roles within our duo; he was "objective guy", while I focused on crowd control. We established those roles at the very start of the raid, and never needed to discuss them again.

The thing about this "working in pairs" breakdown is that it is flexible enough to allow improvisation, while also keeping this a little more manageable for players who found KF a bit overwhelming. You can just focus on what you and your wingman are doing, while players who have a bit more situational awareness can move around a bit more, rotate to cover weak points and provide help where it is needed, or step up and save the say if things go wrong.

Overall, this looks like a raid that is going to be a lot of fun to replay :)

You're right until a certain point with the final boss where the empowered have to slam him, you need 3 randomly selected people in the right position to slam him if they're closest. This causes the pairs to have to break up if a side is missing an empowered.

Some spoiler-y DPS suggestions - don't look until you've figured out the last encounter mechanics:

* Shock/Null/Scorch Cannons do the most damage, and they are affected by light level. Your highest light level guardians should be the people with the cannons, and they should use them to damage the boss.
* Weapons of Light and Tether also help increase DPS, but save them for the 3rd stun that lasts a long time. The boss seems to be able to cancel a tether when his stun begins, so wait a few seconds to fire it.
* Making sure that all teleport locations are covered by an empowered person is more important than DPS - you need to get to the third stun every cycle if your team is low light level.
* High impact snipers for everyone else; his head is his crit spot.
* You can do a little damage before the stun - I threw grenades.

One final spoiler below. This is a spoiler for a blind team that needs the above advice, but would probably save at least one wipe for a team that has the mechanics down and is just working on execution:
When the boss health gets very low, he'll return to his original spawn location for a "last stand" (just like Oryx). Make sure you have some ammo to burn him down the last 5 or 10 percent.

Is deciding whether you are missing something, or if you just suck.

I'm still not sure what they answer is on the last encounter, seems to be some vaguely conflicting information and I'm afraid to look at some of these posts depending on what the answer is.