Willhelm was some what confused. He understood that this power suit was based on old pre war tech, but a annual inspection? He will have to ask Rose about this information. Maybe he could persuade (since I am skilled with it) the robot to allow Rose and him through. Hmm it is worth a shot. Willhelm stood tall and proud then says in a patriotic sounding voice. "Greetings to you too fine sir. I am here upon request to inspect this facility as we have not been here for some time. Just by the look of things you done your country proud in protecting this facility. Now as for my identification Passcode I am sad to that I forgot it. If you think that I am a enemy then just think logically about it. Now how could our enemy even think about coming to such a fine protected base and even comprehend fighting against two of our Glorious American made military Robots?" Then he stops to see the robot reply. If it works he will be  relieved but if it fails, he will swing and hopefully catch it by surprise.