[Lt. Spanks]

I am currently infuriated that I can't remember what the text that comes before the Command Briefing is called and how to implement it into a mission. It was used a lot in blue planet WIH.
Could somebody refresh my memory. 

[Lepanto]

It's called the Fiction Viewer.

Details here. (Ignore the stuff about additional interface art because it's already in the MediaVPs.)

It's useful to convey between-mission non-combat narrative, but don't use it too much unless you're going for a WiH-style narrative-heavy campaign.