Terminal images and Nightfall can not be viewed in Japan.
“正しくありません” Is displayed
It is currently not supported in Japan unfortunately. If you can get a VPN on your phone that you use the app I do believe you can set yourself as a European country or in America and get the videos
To be exact
It is HALO CHANNEL of XBOXONE application.
So I can not see terminal images of HALO MCC.