A new for it's kind when originally released, Commandos: Behind Enemy Lines split the gaming community down the middle. There were those who thought it was too hard and punishing, while others loved the challenge it provided, but everyone agreed: it is a very, very difficult game!!!
Be prepared to quicksave and quickload a lot! But if you can do that, a pure gaming gem of the past will reveal itself!! The missions are exciting, some can take up to several hours to complete, the enemies act in a realistic manner (they'll follow your footprints, listen for sounds etc.) and the presentation is still mighty descent. Plus, because of the difficulty, it's extremely rewarding to complete a mission. More so in many of today's games.
Finally a long-time favorite has come to GOG!!!