Changes some bags to a different category to be more realistic.

Item	Original Weight	Changed Weight	Change
Battery	Slightly Heavy	Heavy	Up
Empty Water Tank	Light	Medium	Up
Murky Station Bomb	Medium	Heavy	Up
Small Bomb Part	Medium	Heavy	Up
Big Bomb Part	Heavy	Slightly Very Heavy	Up
Goat	Medium	Heavy	Up
Pig	Slightly Very Heavy	Heavy	Down
Giant Sandwhich	Very Heavy	Medium	Down
(Counterfeit) Money	Heavy	Medium	Down
Gold	Heavy	Medium	Down
Single SCAR	Heavy	Light	Down
Single AK	Heavy	Light	Down
Double AK	Heavy	Medium	Down