Hmm, perhaps I should have looked over the skill levels a bit more closely
before I commented. I will say that I still stand with a 5+ being a Master
in that skill, and at least a 2 in a skill is needed to seriously expect to
make a good living at a job using it.
Revised Skill Description (weapons):
level-0: you know how to hold and swing/fire the weapon, as well as loading it
level-1: as above, but you can do basic maintainance on the weapon (typical
skill level for non-military types)
level-2: you are good enough to compete in contests, and can field strip your
weapon under difficult situations; minimum level for a (good)
bodyguard or mercenary
level-3: you are very good with your weapon; you have a skill that is expected
as minimal for elite forces
level-4: you are an expert in your weapon; you can do major repairs, and
if having mechanical and/or electronic skill (depending on the
weapon type), you can do some customizing of the weapon on your
own
level-5+: you are a master in the weapon; you can do major repairs and can
design weapons in the class similar to your own, and can do major
customizing if you have other skills appropriate to the job at hand.
The same general ideas can be used for other skills, where level-0 =
familiarity and level-5 = mastery.