If you took our advice earlier and eliminated a bunch before entering the Museum of Science, than you shouldn't immediately have your hands full until you begin to head towards the Washington Monument (which is the tallest point left in the city, and can be found to your left once you leave the museum). How many Super Mutants you have to deal with depends entirely on how many you've already killed in this area. Now, you're going to have to do battle with a load of Super Mutants on the final leg of our journey. When you reach the entrance, head back outside and get ready for the final leg of our mission.

Explore any other areas that you didn't yet check out en route back to the entrance. As long as you killed all of the Super Mutant variants in the museum, you should be able to get all the way back to the entrance without much of an issue. When you're ready to leave, you're going to have to go back the way you came (there's another door near the Lunar Lander, but we were unable to open it right now). 308 Caliber Rounds (x10), Missile (x10), Med-X, Psycho, Jet, Buffout, Scotch (x2), Rad-X, Dirty Water (x2), Blood Pack (x2), Flamer Fuel (x84), Dart (M), Railway Spikes (x19), Carton of Cigarettes, Pre-War Money, 5.56mm Rounds (x43), Assault Rifle (x3), 10mm Pistol, Frag Grenade (x2), Fancy Lads Snack Cakes (x2), Stealth Boy (x3), Camera, Pre-War Casualwear, Dirty Pre-War Businesswear, Nuka-Cola Quantum, RadAway, Hammer, Wrench, Shotgun Shell (x12), Metro Ticket, Pack of Cigarettes (x2), Tire Iron, Plunger (M), Conductor, Pool Set, Pool Cue, Baseball, Medical Brace, Sensor Module, Scrap Metal (M), Paint Gun, Sledgehammer, Pork N Beans, Wonderglue (x3), Chinese Assault Rifle. 32 Caliber Rounds (x13), Milk Bottle (x2), Tin Can (M), Bent Tin Can (M), Empty Soda Bottle (M), Steam Gauge Assembly, Whiskey (M), Energy Cell (x26). Purified Water (x2), Stimpak (x7), Firehose Nozzle (x2), Nuka Cola (M), Earnings Clipboard (M), Clipboard (M), Various Books (M), Cup (M), Bottle Caps (M), 10mm Rounds (M). (2) Retrieve the Communications Relay Dish.

Fallout 3 repair npc