Monetizing Halo 4 videos on YouTube illegal?

are partners allowed to monetize Halo 4 videos on YouTube or no? does someone know the facts?

thank you

“Without the appropriate license from the publisher, use of video game or software user interface must be minimal. Video game content may be monetized if the associated step-by-step commentary is strictly tied to the live action being shown and provides instructional or educational value.”

Source: http://support.google.com/youtube/bin/answer.py?hl=en&answer=138161

My interpretation is that it is legal for you to monetise your videos but you must have a commentary.