Say I get a prize box that has a 10% chance to give me a weapon and there are two weapons available there, a completely overpowered gun that shoots bullets that go through walls and OOO desperately needs to be nerfed and a shield no one cares about. Is the 10% applied to the weapons in general (Meaning they technically have a 5% chance to be chosen individually) or do they have a 10% to be picked individually.
This question is probably hard to read and probably the answer is obvious.
A shield is not a weapon, so I think that you might be mis-reading the text.
Exactly which text are you trying to understand?