Question: Why the patriots didn't take rex or destroyed it?! they just left it in shadow moses?

[BigBrother]

Wasn't REX missing its railgun, which was what it used to stealth launch nuclear weapons? Without it REX was like a declawed cat, it posed no threat.

thanks a lot!!!!

I also think that they might've presumed that REX was destroyed by Snake. It's been years since I played, but I think Snake and Otacon were surprised that it functional. They weren't intending on activating REX; it was a hail mary move to get it working (again, as far as I recall). The last time we saw it prior to MGS4 it wasn't moving and Snake and Liquid were fighting atop it.

RE rail gun; I think Liquid scrapped it and attached it to Outer Haven. So that's not quite right. That was why Liquid went to Shadow Moses.