See the article here: Fixing Commandos for solutions to make the game playable. Due to it's age most modern PCs will run the game impossibly quickly making it difficult to play but both Steam and GoG.com version have been patched. There are some important issues with Commandos: Behind Enemy Lines. However, in the demo version of this game, it will let you play two of the twenty missions from the full version which are the following below.In the reduced version of this game known as 'Commandos: Behind Enemy Lines - The Early Battles', you will only play four of the twenty missions which are the following below.In some versions of the game, If you don't obtain a rank of at least Captain by the end of mission 19, the game will end here instead of letting you play mission 20.Frustrate Retaliation / Frustated Revenge.

The first one is the name in the European version, and the second one after the slash is the mission's name in American version, if it is different. Commandos Behind Enemy Lines je svojho casu velmi popularna a nezvycajna strategicka akcna hry, kde slo o preciznost prejdenia jednotlivych misii. The missions names are different between American and European copies of the game. There are 20 missions in total in Commandos: Behind Enemy Lines.