Your missing the point... we are saying scale it down to be proportional in size to the character you are portraying... if you dressed up like a transformer, but carried around a transformer sized weapon, would you not look silly...
This is the last I have to say on it... do what you will... its a matter of opinion to scale the weapons to be proportional to your armor so your chief doesn't appear like a runt... or leave them full size, and the you will look like the little person.
Do what ever you want...
post some pics when you are finished...