The Story of Castle Xeen

In 1944, when the Nazis were starting to lose against the Allies, a god came down from the heavens. His name was Xeenmoofy. Xeenmoofy said that the Nazis were right about what they believed, so he built this enormous castle of 39 levels, named Castle Xeen, which kept the Nazis' Füüher, Hitler, safe and sound. About 10,000 Nazis were housed in Castle Xeen, which made it the most dangerous castle in all of Germany. Makes me scared! Well, you are Hans D. Fritz, cousin of B.J. Whatever, and you are a French soldier that accidentally wandered into Berlin when he was drunk. You were captured by the Nazis, and you were held captive until Xeenmoofy built Castle Xeen. Once Castle Xeen was completed, you were to be held there until further orders. Being led to the dungeon, which was full of rats, which you REALLY hate, you hit one of the guards, grab his gun and knife, and beat the crap out of him. Luckily, the other guards chickened out, so now you find an elevator, with a pistol and a knife. Once the elevator stopped. You are facing one of the grand officers of Germany! What's a French soldier to do?