First u creat a profile or whatever then u earn money to buy the weps with upgrades or whatever(u have to be a good amount in the game othermise u r just practicly doing nothing)then u save and then overright that saved file then click the same person u were (or your partner if u want his weps)BUT U WILL NOT HAVE THE WEPS UNTIL U BEAT THE LEVEL AFTER TRAINING(OR THE LEVEL WERE U PARACUTE TO THAT CLIFE AND THERE ARE MISSLES)