I really don't got much to go on. I think it was late 80's to 90's. I don't know who was in it, all I have to go on is a scene where the main chacters are on a planet doing a training mission or something when they find a alien that they are at war with on the planet and one of the guys goes to the bathroom in his suit causing his suit to beep and flash and starts a fire fight with the alien.