I know there's Soldier, Siren, Hunter, and Beserker in Borderlands. I'm not talking about that. Im talking about playstyle. It's that more than anything. Like me for instance, I'm a soldier either way, a frontliner. I know automatics better than anyone, regularly using machine guns as sniper rifles. I'm much more of a follower than a leader, asking for advice from the rest of the team on what to do. Or I can just go out and destroy everything. I'm a backup people can rely on. While others get into position or move up, I can provide good covering fire.
So I guess I'm like, an Infantry/Medic/Support Gunner or whatever.
So think of a bunch of qualities that you have for combat. Now what class best suits your playstyle?