to find the address and the values of weapon is easy
first u will have to have 2 or more weapons in your storage then open mhs open process engine.exe then search range from 0 to 100, u will get many address , go back to combat arms change the weapon equip and search different from before do this again and again.
u will get about 4 address first two are the right ones, one of them is back back address and other is main