I have played all Commandos games and they are excellent, a truly wonderful series. The problem here is that STEAM are selling a broken product without mentioning it to the buyer. IT SHOULD BE AGAINST THE LAW!! It's only £10 for all 4 games but it is the principle. Behind Enemy Lines and Beyond The Call Of Duty are UNPLAYABLE on new machines without the EXCELLENT fix that you can find links to in other posts. You cannot LOAD or SAVE for God sake! The game moves at SUPERSPEED compared to the way it should when running properly. Even with the fix, things like the mission preview, where your commanding officer walks you through the mission, don't always work, at least in my experience. Commandos 3, the newest of the games, also isn't working. You cannot show the enemy vision, which is a crutial part of the game. The game just goes crazy and seems to switch between different enemy vision, making it difficult to move. It's very frustrating.
So like I said, these games are all time classics but STEAM taking your money with no mention of the problems you will encounter is UNACCEPTABLE.