Pool your paint. Your back players will end up shooting alot more than your forwards. Start with everyone buying one case and just use it as team paint.
As for pods, our back players cary 7. I play dorito side and I usually carry 4 pods. But in a long drawn out point iv needed to get a pod from my back player. But honestly, most 3 man points will be inside of 5 min
I would really recommend watching mike from tech pbs video on 3 man tips! Just type 3 man paintball tips and it should be their! It's a great video when I first played my first 3 man. But even with this help you still need to learn the fundamentals of the game to be successful! It just takes practice and communication! With paint a pool would be nice and depending on how big the teams are and how many times your going up you could spread out your paint. I hope this helps! And hope you do well!
~ LONG ISLAND CHAOS~ referee at Long Island IPS Paintball