I had no idea they let "suits" play Halo. Scott Guthrie did a guest spot on RvB and Adam Kinney from Channel 9 built a WPF/E video player to display the episode. Adam didn't share the source for this player but you can always just view source the page.
Click the image of Scott driving a warthog below to run the video.
EDIT: Adam posted the source on his blog. Those Channel 9 guys sure do move fast.