The SGC plot lines
If you start getting into the whole 'who's doing what when to who' thing on whichmilitary branch, the show gets really confusing.
You're right. You don't pull usually pull G's in a sim, unless it's a centrifuge. And there are some cockpit sims set up in a centrifuge cinfiguration. [Had a friend who ran training sims for the Air Force] There's a 4 G sim at the Huntsville Space and Rocket center in Huntsville, AL that's a blast along with a micro-G sim. Had a chance to 'work' myself into oblivion when I was there two years ago for 'Advanced Space Camp' - the grown-up's version of Space Camp for kids. {Where the Adults get to play shuttle astronaut trainees for a week with a final of a 7 hour 'mission sim' aboard the 'Endeavor', MissionControl at Houston and/or the Space Station. I 'flew' as pilot for take-off and docking and finished the mission as Station Operations Manager. The whole week ran about $900 US room, board and full used of the museam and sims. Cheap at twice the price.} My team - Team Shepard - spent as much time in the actual flight sims and the grav and micor sims as possible to train for our 'flight', even though we wouldn't have a grav change in flight. I just wanted to know if I could do my job at least in 4 G's.
They also have a program there called 'Avation Challenge' for both kids and adults for jets.
Saying risking Sam in combat in the Gulf vrs Sam at SGC are two different situations. The SGC, other than being a great science playground, is a fictious situation. Even there, the chances would realistically be Sam would be on base and someone else would be sent out on first contact. Same with Daniel. But that would make for a very boring show with minumal conflicts. Believe me... the military does not like conflicts. And Sam would be one hell of a scientific and financial investment to the service. She'd be kept ground bound 'for the benifit of the service'.
Same with Daniel. He'd be too great a risk in the field.
SG-3 is the Marines. I'm still not sure how they fit in there, except as a hold over from the movie where Jack was a Marine. As to why SGC falls under the Air Force, probably because the Air Force has a more active Space Program and NORAD is Air Force Territory, pretty much.
As for 'paying more attention' during the Gulf War, it was a zoo. I'd spent 15 years at that point learning aircraft, track vehicles [like tanks], helicopters outlines to recognize who were the 'Good Guys' and the 'Bad Guys' so I'd know who to duck, dodge or shoot at. Didn't make a bit of difference. With everyone who was involved in the Joint Forces, you were just as likely to see a flight of three Mig's fly overhead right after a wing of F-16s.
I did my first day in Rhyaidh, as a matter of fact Freaked me out. After a while you just went with the idea if they were shooting at you they didn't like you and it was okay to shoot back. Kind of a basic idea, but, hey... we were a hospital unit. We could do basic.
If they were shooting at us, things has gotten 'way too close to discuss things.
Made for severe craziness.