While Bobby Bram drives Blazkowicz to his objective in London during the opening sequence of Chapter 6 "London Nautica", notice that the keychain hanging from the ignition is a rocket launcher from Quake 3.
During Chapter 7, Anya will ask for a sample of the moldy "Super Concrete". Look to the right of the Kreisau Circle Hangar entrance and search for a big red circular door covered in steam. It is marked with "101", a reference to Vault 101 and its large circular door in Fallout 3.
Play Chapter 4 and meet Anya in the Resistance secret base. After the helicopter theft, head upstairs to the top floor and find the room with an old mattress on the floor near the window. Use the bed and choose the option to enter a nightmare, which is actually a level from Wolfenstein 3D.
Shoot them with your shotgun when facing them at close range, but be sure to have a large amount of health and armor if attempting close combat as they deal great damage. A couple Tesla grenades and the Assault Rifle are good at medium range. For long range, use the Marksman Rifle or Laser.
In Uber mode, fire a constant stream of shots from the AR Marksman's automatic plasma rifle. Shots fired using the LaserKraftwerk's Targeting Scope at close range also will kill them. Getting two direct hits with the Rocket Launcher will also take one down.
During Chapter 7, after collecting a sample of the "Super Concrete" for Anya, Max will return to his room and sleep. Find the crayon drawing of Max's four missing toys near his bed-- these toys are hidden in the Kreisau Circle base. After locating all of them, return to the crayon drawing to set them down. Completing this side-quest unlocks Max's entry in the character info panel. The following toys are in the corresponding locations:
Talk to Wyatt or Fergus to get the key, open the locked door, then look on the shelf just to the right of the door.
Inside the hidden chamber behind the poster in Caroline's bedroom. Crawl into the gap and look to the left and on the ground.
Found on your way out of the Kreisau Circle Hangar. It can be heard near the hangar entrance.
Space Marines are weak again Tesla Grenades. You can also hit them with a MG-60 or an AR Marksman to eliminate them. If you can use stealth to approach them, a knife or headshot from a suppressed Handgun 1960 will also do the trick.
When facing the two Zeppelins in the final level, use the two Flak cannons mounted on the sides of the upper levels of the back to hit the cylinder tube on the bottom. One cannon cannot be used to destroy both tubes because of its limited firing radius. Once they are destroyed, Deathshead cannot use his shield.
The following is a list of all entries in Ramona's diary and what is written:
"May 11, 1940. I've only been back home for three days and now the Nazis have arrived in town. They killed Jakub Brozek. He was shot in the head. His horse was blocking the road. He taught me how to French kiss. I'm going to do something about this situation."
May 12, 1940. The Nazis have taken over the police station. They are asking local people to volunteer for service. I'm going to volunteer. I'm going to find a way to kill them."
May 18, 1940. Daytime I care for the sick, working at the asylum. On the evenings, I go to town to prepare for supper for the Nazis at the police station. They seem to trust me. I think I can lure one of them away. If I can get to a Nazi alone, I think I can kill him. I have never killed anyone. I don't know how to fight or fire a weapon. I will have to be smart about it. I miss the university. Perhaps, what I'm about to do will be a learning experience."
June 25, 1940. The Nazi appears to have a very high opinion of his mother. I learned this as a he was bleeding to death at the end of my knife at the outhouse next to the bakery. "Mutti!", "Mutti!" he whimpered. My hands were shaking. Nearly dropped my knife. I had told him I would kiss him and he let me lead him outside. Into the night."
November 29, 1940. The Nazi appears to love his sausage. I learned this as he kept on eating his supper even though the cyanide must have ruined the flavor. His eyes rolled back, all white. Yet he kept chewing. The cyanide I stole from mother's cabinet. At times I am struck with pangs of remorse. But then, I think of Jakub Brozek."
May 2, 1941. The Nazi appears to become sleepy after climaxing. I learned this as his little soldiers were leaking out of me onto his sheets. And his face turned blue, from the rope applied to his neck in his slumber. Tomorrow is my eighteenth birthday."
May 29, 1941. The Nazi appears to have been brought up lazy. I've learned this when I outran three of them, carrying a crate of grenades. I think I'm pregnant. I wish I knew how to use a gun."
July 6, 1941. The Nazi appear to be overly devoted to his police station. I learned this while tossing grenades into the building. Seven grenades went in but not a single Nazi came out. Does killing Nazis make me a murderer? Don't know. Don't think so. I'm not a soldier, but this is what soldiers do. And I have to steel myself from emotion, like a soldier does."
August 9, 1941. The Nazis appears to be highly gullible. I learned this as I pretended I was drowning and he dove in to save me. Body armor and all. I had only to apply the gentlest of pressures to push him until he stopped struggling. I am pregnant. It's not showing but I think mother suspects. I've decided to find an apartment for myself."
August 30, 1941. I have my own apartment, two floors above the bakery. I can't leave this Nazi baby inside me anymore. It has to come out. I took some pills from my mother's cabinet. They did not work. All they did was make me sick."
September 3, 1941. The Nazi appears to be a reckless driver. I learned this after I cut his brake line and his car went over a cliff, as he drove down the mountain. I didn't see it happen, but there was a picture in the paper. I had a friend at the university who successfully terminated her pregnancy, through consumption of Pennyroyal oils. I have written her, for instructions."
September 13, 1941. A letter arrived from London today. I have presumed a vial of Pennyroyal oil. I have stolen some antibiotics from mother. I won't be coming to work tomorrow."
September 14, 1941. Pain unbearable. Won't stop bleeding."
September 20, 1941. Still alive. The Nazi baby is gone. After the weekend I go back to work. I have patients to tend to. I have Nazis to kill.
January 5, 1942. The Nazi appears to have poor reaction time. I learned this as I ran him over at a red light. I don't know what came over me. It was in the middle of the day and people were looking. I drove away as fast as I could. I have to reduce the rate of my attacks, or they will catch me."
July 9, 1943. The Nazi appears to be made of bacon. I learned this as nine of them burned alive inside a late night establishment. A lot can be accomplished with padlocks and gasoline. Father could smell the gasoline on my coat. I lied to him. He mustn't know what I have done. He's too sensitive."
July 4, 1944. The Nazi is a hopeless romantic. I learned this while smashing his skull, using the hammer I had hid behind my back, as he knelt to pick up my fallen glove. If I was a boy, father would have taught me how to handle a rifle. But instead I was trained to nurse the afflicted, dig dirt for relics and write papers. I wish I knew a soldier. He could teach me how not to feel remorse. He would understand me."
September 23, 1946. A man came in today. Horrible head trauma. He has scars all over him. He won't speak. No ones knows where he's from. I think he's a soldier, but not a Nazi. I wish he could talk to me. He has a strength about him."
July 10, 1948. The war is over. The Nazis have declared victory. People are celebrating the peace. I can't stop crying. For me, this war is never ending."
November 16, 1951. The Nazi appears to have a hot temper. I learned this as I attempted to smash his head with a flower pot I dropped from my apartment window. Sadly, I missed. He had friends nearby. They broke my door down. I said it was an accident but they gave me a black eye and spit on my dress. I want people on my side I can rely on. My grandparents are on my side. But they are not fit to fight."
July 17, 1955. The Nazi appears to be a choosy bachelor. I learned this as we sat on a picnic blanket in the meadow lands. He said he would kiss me, if I bleached my hair blonde. I was nauseated by his request. But as long as I smile and hide the hate, no one is suspicious of me. So he drank the wine I spiked with sedatives. And I rolled him down a shallow grave."
December 24, 1956. My heart is breaking. Friends I've known my whole life have all become Nazis. Mother and Father are not happy about it, but they comply rather than resist. I feign my smile and act cheerful, but I have started to resent my own parents. I am 33 years old. I am all alone in the world."
May 6, 1957. I should keep fighting. But who is there to fight? Everyone is a Nazi now. Or at least they pretend to be. I can no longer tell the difference."
August 28, 1960. Deathshead's men are coming by the asylum every other week. They are taking people that have been in my care for years. I look the other way. I hate them. I hate myself for giving up. But I can't fight alone anymore. I watch the man with the scars. I whisper things to him. Sometimes I can see some part of him awake. I wonder if he can see me. I will not let them take him." That was the last entry, William. Some of the things in this diary happened a long time ago. And some of them may have happened to me. I miss you. I missed you a long time before I met you.
You can upgrade the Laser Cutter into a Laser Pistol after finding it in Chapter 4. Continue in that same chapter until you reach the catwalks above a coal-moving vehicle below. Go down the steps to the left to collect the item that resembles the battery originally collected to charge the cutter.
Focus on its eye first, then both the eye and the missile launchers. Once the missile launchers are destroyed, the area underneath its red spot will open. Go under the London Monitor and attack its engine. Keep shooting both its eye and engine until it has been defeated.