Use HMD to control normal camera?

I want to record some in game footage of my scene being played with the oculus, but I’d like to record a single standard 16:9 camera output (for use in a promo). Is there a sensible way to do this?

I would be able to do without seeing the stereo image in the headset while recording if necessary, so could use the headset as a camera control but just render a standard camera at that position/rotation. I don’t know if this can be done, however.

An alternative way would maybe be to record the motion of the player’s head in-game and then somehow attach that movement to an in-game camera, but again I don’t know if this is possible.

Anyone got any suggestion?

+1 this is exactly what is like to know please.
Many thanks in advance for your kind help