"Can I Monetize my Halo Gameplay on Youtube"

Im sort of new to using “Halo Waypoint” forums, and I had a question that I hope a
343 Employ could possible help me with.

I have a YouTube channel, and I recently started making videos with my own Halo reach Gameplay. And I was woundering if/how I could legaly “Monetize (Advertise)” my videos?