Dullest definition ever. If in boundries of one class we can have 47 and John Matrix I don't really see the point.
Help me (understand) Obi Wan Kenobi Sardukhar you're my only hope.
The point? What do you mean? As in what separates the Solo-types from each other in a mechanical sense? Their skill selections, cybernetics and attitude.
Part of the problem is you are thinking class and not Role. Cyberpunk doesn't uses classes - it's much more open than that. Solo is the only pure killer role in the (base) game and so anyone that kills or destroys for a living tends to fall under that Role. Within that Role, though, you have as many variations as you do in real life.
47 and Matrix both perform a Role - that of the killer.
They are this more than any other Role, but because 2020 lets you pick and choose your skills, you could have a Solo that focussed on Human Perception, Stealth, Shadowing, Disguise, Pistols and Personal Grooming as well as a Solo who had -none- of those skills but instead focussed on Heavy Weapons, Martial Arts, Drive, Rifle, Wilderness Survival, Expert: Improvised Munitions, etc.
The error, and it's going to come up a lot, is that Roles
are not character classes. They aren't. They are loose categories in which people are defined by their primary job and that, in turn, gives them an advantage over other people who may have the same skills, but do not use them the same way as a professional would.
A Cop, for example, might have the same skills as 47, from the list I posted. Stealth, Disguise, etc. Even some or many at higher levels than 47. The difference is that the Cop uses them in conjunction with his Authority Special Ability to search, seize, arrest and interrogate people. The Solo uses those skills in conjunction with Combat Sense to kill, maim, wreak havoc and destroy better than the Cop can.
So Roles help define your character, but they are only a start point. The rest is stats, skills, gear and attitude/style.
This is also why Wisdom, myself and quite a lot of other people want the Roles even -more- open, so that Agent 47 could have a Solo's Combat Sense as well as, say, a Medtech's ability to patch up wounded or, ( future 47 for example) a Netrunner's ability to hack.
The idea isn't to create distinct character classes, it's to create distinct characters.