This was the result of discussing back and forth with fanfiction writer Wally Boswell and possibly part of a larger story that we had discussed.
The Goauld Surprise ambush of SG teams, Avengers and Justicle league 2
It was supposed to be a routine exploration mission on the Planet P9C-882 for teams SG-1, SG-2, SG-3, SG-4, SG-5, SG-6, SG-7, SG-8, and SG-9 and there super hero consultants joined into each team. When at the the moment that Doctor Daniel Jackson and the other Archaelogists and Linguits were just about to make a ground breaking discovery. A extremely large force combined of lower level Goauld and Jaffa surprised attacked the teams.
During the battle most of the super powered members of the Avengers and Justice League who weren't half diety/full diety super powered members of the were either taken as hosts (due to the death of the original hosts during the battle) by the lower level Goauld right away or taken prisoner to eventually become hosts to lower level goaulds, higher level goaulds, and goaulds that recently matured enough to basically take control of their hosts.
The individuals who managed to escape were the none superhero members of the stargate teams, Bruce Wayne aka Batman, Tony Stark aka Ironman, Natasha Romanoff aka Black Widow, Clint Barton aka Hawkeye, Oliver Queen aka Green Arrow, and Bucky Barnes aka Winter soldieralong with most of the Military/Espionage/scientific members of the Stargate teams due to being the ones willing to use the technological means to avoid becoming hosts of the Goauld developed and provided by Luthor Corp, Wayne Enterprises, and Stark Industries.
But they new that what was left of the Superhero consultants along with the bulk of the Military/Espionage/scientific members of the Stargate teams had to work together extra fully to free their team mates who were already made hosts of the Goauld and were taken prisoner in order to later on also made hosts to the Goauld be able to regain control of their bodies. So they returned to Stargate Command in Cheyanne Mountain Colorodo United States of America on Planet Earth with that goal first most in their mind.