I also found a demo for this (on a CD bundled with MacAddict magazine) and saved up to buy the full game. It was the first PC game I owned, and it had some really novel features for the time, like dual-wielding, changing ammo types, and multifunction weapons (M16/M203). The story was decently written, and you had to know the quirks of your teammates in order to choose the right guys for the job - bringing the wrong guy could lead to disaster!