TF2 and Maul questions

[Striker99]

How do I change my gameplay name in TF2? Clicking on all the links I don't see anything about screen name like you do in CoD4.

What is Maul? I know I have to register but I have no idea what it is.

Thanks all!

 

[ScrappyDoo]

TF2: Right click on the Steam icon. Click on the Friends tab. Change your Steam nickname.

MAUL: http://www.edgegamers.org/forums/maul.php