weapons:
weapon_izhmeh_mr43_sawed_off_12g
weapon_izhmash_mp18_multi
`addCartridgeToChamber` assumed the only id a chamber could have was `patron_in_weapon` this is wrong, it can also have `patron_in_weapon_000` and `patron_in_weapon_001`
it also assumed weapons only have one chamber
Some weapons can have multiple chambers
Some weapons can have 1 chamber but have the id `patron_in_weapon_000` not `patron_in_weapon`
c801dba0b7