Yeah I thought about that when I was writing it. But I settled on doing it this way, because I think that it is alot clearer for new players. I think dividing it by levels gives a much clearer idea of what you should be wearing at what levels, at least aproximately. I think it's easier to read and understand also. I think the notes on the bottom of each armor should clear up any problems if there are any.
I couldn't really seperate it by levels with weapons however, because there are alot less choices. Also, some weapons, like the SPB, can be your choice for the entire game.