First person controller

I would like to publish a game. (Not really PUBLISH but you know, letting other peapole download The game) and I NEED a script for FP-controller movement. Can I use the script that comes with Unity? Or do I need to make my own.

If you want to use assets from Unity, and then let people download the game you are making, you do not have to give Unity credit because when you play a game on mobile, computer, etc., it shows a Unity sign to say that the publisher used Unity to make the game, so do not worry about using scripts made by Unity3D.