A huge one level scenario. Variety here is tight access and then grand areas. Author says terminals are not worked out but they seemed fairly clear as to where to go, however mission itself is not clear. After exploring everywhere, winding down, following the jillion passageways & taking the myriad elevators one finds those fatal flaws so often seen when an author is inclined to make his Map the toughest ever; compilers that can't be killed or moved, troopers that can't be decimated - you've no choice but to quit and try again. Doesn't change the situation.