Aye, those briefings are really corny. "We have to force our way through by force" or "...otherwise the tanks will hang us on the trees like spaghetti", all with a hefty British accent

Practically every briefing also says you have to get to a certain point "unobserved", while in the mission it quickly becomes apparent this is not only impossible but also not even needed.
I still remembered most of the enemy locations and triggers a bit too well, but despite that the game rocked. When HD2 originally came out I missed it and am now trying to track down a copy, so I have no idea how it plays out. No doubt it'll be a nice continuation to this.
FYI Hidden and Dangerous Deluxe, which is HD1+all the addons, can be downloaded
here.