You got limited time to take out all targets. The white bar indicates how long you have to complete the mission. The red bar shows how long before snipers zero in on your location. Shoot them down before they get you!
The Reich is invading Europe! As a commanding officer, it is your job to stop them from reaching their goals. They have tanks and planes, you must stop them with defensive turrets that you have to command and lay in strategic places or all hope is gone.