[DRG]

When a scenario is made data like the unit sound used is taken from the unit at the time the scenario was made and locked into the scenario data file and at the time all the scenarios in the game now were made they all used the default tank unit sounds. You can change them if you like with ScenHack if you have the extended/CD version by loading the scenario then press change......find the same unit and change it and it will pick up the new unit and the new sound.....and if that sounds like "fun" imagine why we don't do it unless a scenario is actually "broken" by an OOB change

The game does not pick new units for scenarios to allow scenario designers the freedom to make changes to the basic data that will be used in his scenario......if he changed a unit to indicate it had taken damage before the scenario began of for example he wanted them to move at infantry speed all of that would go away if the game selected the unit from the OOB and that's why you don't hear those sounds in older scenarios