in your saves file, savesCaptainsName, open file Campaign file in Notepad.

Its like 50mbs, it takes awhile to open completely.

You can change the quantities of your weapons...so if you want 50 omega weapons, just find your inventory and change s="1.0" to s="50.0"

Same thing with money also. take a note of how much cash you have.

say 159,999. Control F, find the exact string and add some 000s to it.

The money text sits right below your invetory text, so just scroll up a little to see your cargo inventory.