One chapter has Heimdall taking the place of Janet Frasier, both of whom have the same (voice) actress.
Elizabeth Weir is startled to find that Narim (a Tollan) and her fiance look nearly identical (again, same actor).
Cameron Mitchell makes several comments involving surfing in his first "on-screen" dogfight with an alien craft. Ben Browder, who played Cameron Mitchell, is an avid surfer.
Creator's Pet: X-COM can come off as this. They're smarter, more skilled, and better equipped than the SGC. Justified, subverted, and played with:
Justified in that X-COM really does recruit all the top people in the world, both soldiers and scientists, not to mention get to pull troops from every nation on Earth as opposed to the US Military. If anyone in the SGC was remotely good enough to even get looked at by them, they'd probably already be serving in X-COM. On top of that, X-COM members are stated to not only undergo Training from Hell, but are often drugged to the gills that improve strength, endurance, and mental attributes.
Subverted in that X-COM really is a blunt instrument, less suited to the missions the SGC undertakes that don't involve shooting everything that moves, then shooting it again just to make sure. In fact, much of the diplomatic side of things (which results in the United Worlds) is the result of X-COM being nowhere near any sensitive discussions. It even backfires at times- several Goa'uld start working together with the Replicators because they can't see themselves working with Sharp.
Played with in that, while X-COM comes up with brilliant ideas (frequently leading Carter to remark "Why didn't I think of that?") the SGC still did most of the legwork, and X-COM is just riding their coattails.
Hilarious in Hindsight: Andianov's objection to Harlan making an android duplicate of her falls flat some time in the future.
Many of the Call-Forward jokes are deliberate attempts at this, such as insinuating that Rodney McKay didn't really have a place anywhere in the Milky Way Galaxy. He was one of the main cast in the spinoff series "Stargate Atlantis," which occurs in another galaxy.
Several characters espouse that the Kelownan version of X-COM, with a 1940s tech base, would be interesting to see. Though it might be twenty years after that, the X-COM game "The Bureau" was in fact about a very early, primitive X-COM (in the 1960s, and in the reboot universe).
The author has stated that he's trying to make a galaxy that is able to fight off the Ori on their own, without relying on Dei Ex Machina from ascended beings as they did in canon. Example: he's gone on record as stating that instead of relying on ancient space magic to cure the Prior Plagues that the Ori used to destabilize the galaxy, the Aschen, masters of biological warfare, will be able to help counteract this severely.
Apparently, there will be a third story in the XSGCOM series, but the title is unknown. It will apparently deal with the Ori invasion of the galaxy. The primary evidence for this is in the chapter notes of "Terra From the Deep" chapter 19. Due to the nature of the story as a Dead Fic, it's most likely that this will never happen.
