For standard PPC match...
You will need
Pistol
Four reloading devices (magazines)
Depending on structure of match, either 60 or 150 rounds of ammo.
The holster should be a strong side, butt to the rear, top draw or break front type, but usually is not heavily regulated, other than being safe from which to draw. Normally, a safety retainer is not required.
Every thing is shot in multiples of six shots. You may not load more than six rounds in a magazine. Every match starts loaded and holstered and commands to load and clear are given.
Closest target is seven yards, furthest is fifty yards. Every thing is fired on one target, which gets replaced for every 'match'. The match official will tell you when to score and replace the targets.
Match One: Twelve shots in twenty seconds from seven yards, all standing up like a man (offhand, they call it). Then, at the direction of the match official, you will move to fifteen yards and do the same thing again.
Match Two: Eighteen shots in 90 seconds from 25 yards. Six right hand barricade, six left hand barricade and six kneeling - in that order.
Match Three: Twenty-four shots in 2 minutes, 45 seconds from 50 yards. Six from sitting, six from prone, six left hand barricade and six right hand barricade.
Match Four: Has completely left my mind, other than it's 24 rounds and pretty much something you've already done.
Match Five (a): Twelve shots in twenty seconds from seven yards. Then, at the direction of the match official, move to 25 yards to fire Eighteen shots in 90 seconds from 25 yards. Six right hand barricade, six left hand barricade and six kneeling.
Match Five (b): Twenty-four shots in 2 minutes, 45 seconds from 50 yards. Six from sitting, six from prone, six left hand barricade and six right hand barricade. Then, at the direction of the match official, move to 25 yards to fire six shots offhand (standing up like a man).
This is the standard PPC course. You'll want to get more information from your friend to determine if they've made some local changes or revisions to this basic plan. It's a fun match, simple enough for a beginner not to get lost and yet pretty hard to shoot as well as you think you should be able.