To recruit Dogmeat you must first find him at Scrapyard which is North East of Megaton across the river (On the world map, Scrapyard is in the top right corner of the square that is two squares directly below Minefield). When you have found Dogmeat in Scrapyard save him from the raider and then ask him to join you.

When you have killed Colonel Autumn at the end of the game enter the code '216' (Revelations 21:6) to activate Project Purity.

At the National Guard Armory there is a hidden area which contains an experimental MIRV gun which was is the most powerful weapon in the game. The Small Arms bobblehead can also be found in this hidden area.

At the Minefield move north and slightly west you reach the VAPL-66 Power station then follow the power lines north until you pick up an alien radio signal. Search the surrounding rocky area staying in range of the signla and you will find the crashed alien space craft and blaster along with some ammunition for it.

The following list tells you where to Look for the hidden Vault-Tec Bobbleheads, when you collect a Bobblehead you will gain either +10 to a skill or +1 to a stat.


Skills

Repair - Aerefu:
In Evan King's house.

Medicine - Vault 101:
Found on your dad's desk when leaving.

Energy Weapons - Ravenhold.

Speech - Paradise Falls:
Found at Euology's (Slave Master) house on a table.

Big Guns - Fort Constantine:
Found inside a safe in the wall in the basement of the CO Quarters.

Barter - Evergreen Mills:
At the back of the Market Bazaar on a shelf in the upper-right side behind the Raider Trader that does not attack.

Explosives - WKML Broadcast Station:
Found by turning on your local map and going through the doorway to the sealed cistern.

Lockpick - Bethesda Ruins:
Found in Bethesda Offices East, on the top floor near the door to the bridge.

Melee Weapons - Dunwich Building:
Found on the floor next to the door just before you leave the Virulent Underchambers.

Science - Vault 106:
Found on the second level on a table in the middle of the living quarters.

Small Guns - National Guard Depot:
Found by going through the training room and offices to exit from a door to the main room. Then using the power switch on the wall to your left enter the Armory door and search the shelves.

Sneak - Yao Guai Tunnels:
Found on the right of the map near some water on top of a metal box in the Den.

Unarmed - Rockopolis:
Use your local map and go directly west from Casey Smith's garage and look for tattered banners that are strung up.


Stats

Endurance - Deathclaw Sanctuary:
Found at the entrance on a table next to a rotting Brahmin corpse.

Luck - Arlington Cemetery North:
Found a the house to the north in the basement on a shelf directly below the stairs.

Perception - Republic Of Dave:
Found in the Museum of Dave on a bookshelf on the right.

Agility - Greener Pastures Disposal:
Found in the small office covered in radiation.

Intelligence - Rivet City:
Found on Dr. Li's table in the Science Lab.

Charisma - Vault 108:
Found in the Cloning Lab.

Strength - Megaton:
In Sherriff Lucas Simm's house.