NCR Recruit

You are the Trooper Recruit. Given two weeks and a firearm, you were sent from your home somewhere in the wasteland in California to defend some other piece of the wasteland in the name of freedom, democracy and the Californian way. With little experience and the worst equipment money can buy, you're expected to follow orders from nearly everyone who comes your way.

Being the Recruit
The Recruit starts with a .308 Hunting Rifle and 1 Stimpack. Put the Stim in your pocket for easy access, and make sure a round is chambered in your Rifle. Follow the basic steps, and you'll Seize the day or whatever. Fucking boot.
 * 1) Get Friends

Nobody Likes a Lonely Looser, especially a lonely looser with a bolt action rifle and no friends to hit him with a Stim when he inevitably gets downed. Find a Lieutenant or a Captain. Salute. State your name and State you are Reporting for Duty. The Officer will likely assign you to a Sergeant, who will be leading your squad.
 * 1) Join Your Squad 

There are typically (when NCR is fully populated) 3 squads active. They go loosely by the names Alpha, Bravo and Charlie. There are no squad identifiers (YET), but they are typically all lead by Sergeants. REMEMBER, YOU CANNOT SURVIVE WITHOUT THE POWER OF FRIENDSHIP.
 * 1) Get an Assignment

This job is mainly meant for the Sarge. What he'll do is go to a position of leadership, and he will ask for a assignment. You will usually get one of 3 answers. 1. You are to garrison the base. 2. You are to patrol into the field and complete a field objective. 3. You are to conduct a raid on an objective. The Sarge will then run over to your squad and deliver the orders. IF YOU ARE NOT NEAR YOUR SL TO RECEIVE ORDERS IT'S UNLIKELY YOU'LL RECEIVE THEM.
 * 1) Repeat

lets just say that the NCR has a fast turnover rate. You need to make sure your squad is healthy (The stronger your bond with your squad, the stronger the squad), but sometimes you can't do anything.

Chain of Command
You're at the very very bottom.