This game is a classic. You can completely lose yourself in a mission trying to play it out like a hitman. You will find yourself stalking people, learning their routines and trying to figure out entry points to get close to them. I distinctly remember being in a suburb and hiding in the neighbors kids treehouse spying in on the target trying to figure out any sort of way in. Every level will have so many possible solutions. Some levels you might end up running and gunning, some might be a sneak in and stealth it up affair, some you might find a vantage point and a silenced sniper. All get the job done (though some are cleaner than others). The game is a little clunky by modern standards but if you are someone who frequents GOG then this is probably not so much of an issue for you. If you can get past that and some slightly dated visuals then this is a must play gem