I was never able to finish this game. I always made it to the end whenever I used to play it, but always failed on the last mission. I'll take an educated stab and say that I've attempted the final mission over 200 times, and am still yet to complete it.
I havent played it since 1997, so I'll start over and try to get it done. You know how it is....if you cant make it past a certain point in a game, dont play it for a while, then when you get back on it, you'll end up doing it straight away.
I just hope 8 years is long enough.