Thank you. So here is what I've just added to the help entry about the BAB: Characters with Low BAB have the same BAB progression as the Wizard. Characters with Medium BAB have the same BAB progression as the Cleric. Characters with High BAB have the same BAB progression as the Fighter.
Cheers
'Say there is a chunk of meat. Pirates will have a banquet and eat it! But heroes will share it with other people. I want all the meat!!' - Luffy in One Piece