[quote=@XxLyraxX]
[@Frengo]
Where is the Rig located? 
[/quote]

That's for the characters to find out. But from what Morgan has revealed, there's a lot of sea between the Rig and the "continent." So Europe, or America, most likely.

Well, he's English speaking, and is apart of the 22nd USMC Regiment, which points you in the direction of either the Atlantic or the Pacific. The East Coast or the West Coast. 

So 50/50 on that, and then there's the working out of how you got to the Rig. 

No doubt you've guessed a plane can't land on an oil rig, so you were brought in by helicopter. 

Your average American military helicopter can travel anything between 350-400 miles on a full tank of fuel. 

That's as bout as much as your characters will know for themselves. If they want to know more, they'll have to ask the NPCs... who may or may not give up the information.