I went paintballing yesterday and of all the times ive went ive never noticed this. Each individual takes on a different role. Ive devised several different roles. Post which one you are and your main Paintball marker of choice.
POST / IN BETWEEN IF YOU THINK YOU PLAY TWO ROLES. E.G. im Assault/Support. POST YOUR MAKER OF CHOICE ALSO Role Classes-------- 
Assault/Infantry-You are mostly on the front lines.Youre mainly in the middle of the carnage and fight toe to toe with the enemy.=

Support/Supplier-Youre job is mainly running around the field helping anybody who needs a little extra firepower.Of course this means you must carry around alot of ammo and youre generous enough to give it to anyone who is running low.=

Tactician/TeamLeader-Alot like an assault player youre in the heat of the battle most of the time.However you are the one who usually gives the orders and tells players where they should move to.But you probably earned this role.Why else would anyone listen to you?=

Sniper-As a sniper player you mainly find a solid position and watch over the battle most of the time thru a scope.You sit in your foxhole picking off any opponent curious enough to wonder into your cross hair.=

Rogue-The rogue player is the one who is often the only one brave enough to run straight up to the enemies position and come right up close enough to surrender them.=

Decoy-Many people think decoys are common players who are kinda new to the game.However thats not completely true.Youre job is basically like the assault player but you are also brave enough to draw fire so your teammates can score some easy kills.=

Grenadier/Breaching-If your field allows it you are the one who pops grenades into buildings.You score massive amounts of tags at once.You laugh as you see ten or more opponents walk out of a bunker with there guns in the air and there shirts a different color than before.=

Capturer/Defender-You assault bases and take them so your team has a good strong hold to fall back to.However you mostly wait for anyone with hostile intentions which is something that requires patience.=

Coward-You are that guy that wont really do anything and run away in the face of one single unexperienced opponent. You are worthless and need to step up your game.
Equipment classes-------- NEW!!
Operations/Recon-Alot like a sniper player the recon player is the one who uses stealth to his advantage.But as a recon player you sneak around the enemies and go straight to there base and report any situational updates that could be critical to your teams victory.This probably means you have a lot of radio equipment and high tech devices.= NEW!!
MachineGunner-As a machine gunner you play both the defensive and ofensive sides.Whether your defending a base by laying down walls of highly pressurized spheres or running up hills while doing the same thing.This means your marker is probably somewhere in the LMG category.And it can fire at extremely high BPS rates. NEW!!
OverPacker-You are that guy at the field who has two markers.Upon seeing you people think that extra gun is just a backup. But they were wrong because you take both of them with you to the battle.This means you have more than one marker and use them both.