When reading anything about the Ancients - these Gods, as it were.
They were not spiritually advanced nor evolved. They did have the
technology - superweapons and what have you.

and even lost battles with it....
how strange...so the enemies even had better superweapons?

This is just one account about it all...
http://www.semjase.net/semjeng10.html

so many words but so few or better NO evidence..
but it's a great movie script.