I'd have to agree with Funk right now. I've asked Tash before for more classes and more involved classes, but Tash said he'd already wanted to but Stefan said no to the idea.
Now, however, is not a good time to drastically change combat in Zone. Zone has a lot of **** it needs to deal with all at once. Classes should wait instead of adding a fragile class system inside a fragile (and possibly broken) combat system.