Further further to the bronze vs. iron debate:
I don't have any insight in toughness or brittleness, but I have studied the economics of Bronze/Iron Age, and you are right; Iron was MUCH easier and cheaper to produce, as long as you had access to the ore, and even if you hadn't it was, again, cheap to buy. The tin needed to make bronze was extracted from less than a dozen places (at least in Bronze Age Europe and the Middle East) and had to be imported, often over VERY long distances. It was incredible expensive, meaning that bronze weaponry - not to mention armour - was usually reserved for the elite only. Losing access to tin trade could potentially topple entire nations (much like oil today).
By comparison, entire armies could relatively easily be equipped with comparably cheap iron weapons and armour which as far as I understand was of just as good (or better depending on who you ask) quality than their bronze counterparts. It made sense to switch to iron economically and politically. There is no sense in keeping a monopoly on an expensive military product if your enemies can get a cheaper version of similar quality and use it against you.
Either way, since Desert Stalker is set in a post-apocalyptic setting it doesn't really matter. The steel from 21st century Egyptian buildings alone would be enough to remake into an arsenal. It would be fun though if they had to import other vital goods from abroad, like Bronze Age tin. Maybe we get to see Igor provide such services in the future?
