Gamebryo/Game settings

In Fallout 3, there are items known as "game settings" which can be modified in the PC version of the game through use of the console. These settings usually affect the physics engine and its limitations on the player. To change these, open the console and type. You can also use a lot of these commands with a Ref ID. That includes "player". For example, to change your run speed without affecting ALL in-game NPCs, enter "player.setav speedmult 150". This will make you 150% faster. To change your companion's speed, enter their RefID in place of the aforementioned "player", for example "e32a9.setav speedmult 150". REMEMBER: Don't mess around with these values and save your game unless you're completely comfortable using the console for your entire game, because changing values like these WILL undoubtedly cause bugs that you'll need to fix later on.