In my first three or four playthrough, I don't use most of the possibilities of the game. Not because i don't get it, i simply don't need it. I focused on combating and a little questing. And from this perspective DOS is a clone from [enter your game here]. I get the rest of the game, after i start trying around to "broke the game" or "what is possible"
There are some simple ways to "gently" force the player to take a deeper-look in the possibilities the game offers: like DOS do with the "Burning-Boat"-Quest (i guess there are several game-journalist who don't even get this quest).
But i think, you can't put enough in the first hour, without a hypocritical - feeling.
A small landing sequence (how the booth source hunters get to the beach instead of directly landing in the harbor) should over a chance to show the best parts of the game, to get the player enough interested, what is going on and how the game works.
