I don't know what you're alluding to by that. Except… I seem to recall something about that machine having Kinect as an integral feature. Is that it?

: but do you care to explain your reasoning

The reasons that come to mind mind are (a) I don't want to be projecting noise outside my personal space, potentially disturbing people, (b) I also might be conscious of sounding silly to people, (c) I'm naturally quiet and would prefer to operate controls rather than speak, (d) maybe I'd just plain feel silly talking to the machine.

Thinking about this however, I guess that if I had a headset, I wouldn't need to speak loudly, and thus my first two reasons might not be an issue. Also, the last reason might not be an issue in practice, as I might get to feeling like I'm (for example) talking to Marines rather than talking to the machine. Possibly I ruled Kinect out too quickly after all then, ha ha. Dagnabbit, I hate when people make me think!

Perhaps I could at least tolerate voice commands that would correspond to spoken commands in the virtual world. For example, I might be happy to say "Don't open fire" to stop my idiot Marines ruining a stealth approach, but I wouldn't want to be saying "Switch to plasma grenades" to make myself do that - because that would be completely false. Lilewise I wouldn't want to be saying "Open the door" to make myself open a door - because that just doesn't map to reality.

: However, Kinect integration is much better/cooler than I anticipated.
: Navigating the Xbox One UI is awesome with Kinect.

Navigating the UI is one things I really wouldn't want to be having to speak to do. Speaking to Marines (etc) is one thing, speaking to my Xbox is quite another. But in any case, navigating the UI is certainly simple enough not to need voice commands; so I'd certainly hope that it was never obligatory.

: Just as simple as Marines
: responding to very basic voice commands. "Stop," "Cease
: Fire," "Target the Wraith," etc., sounds absolutely fantastic.

I appreciate the possiblities it could open at least. As long as that headset thing is a go, allowing me to still be quiet, I guess I need to officially backtrack on completely ruling out the use of voice commands. However, the voice recognition would need to be darned reliable, or it could ruin immersion during gameplay.