How to I made it 1st person?

I want my game to be a 1st person shooter, but can't get the script. Also, how do I make it so that the user has no control over the way he/she faces? A.K.A. how do I make sure the character doesnt look any other way then how I want them to?

I don't have an answer for for the last one. But for a first person shooter game, just grab a free model.

Create a local script and place it in the starterPack. This script will get the player's camera and lock it in LockFirstPerson mode. This will solve your first question.

local Player = game.Players.LocalPlayer --Find the local player
Player.CameraMode = Enum.CameraMode.LockFirstPerson --Lock First Person