In the game as a whole, you still have the same team of the same commando, divided depending on the different difficulty and abilities. All the states that the authors have tried to imitate are basically just their own imagination, and after all, it's primarily fun - see Commandos as a historical strategy, but not 100%, because missions are not based on real events.
It is not a historical simulator that adheres to all real events or weapons.
Commandos: Behind Enemy Lines is a World War II strategy that puts you on a team of six commandos.