Stargate Alpha Site
The physical Alpha site is pretty simple. There are a few dozen Quonset huts laid out in a dispersed pattern 500 feet upwind from the Stargate. Four large quarantine tents are set up nearer the Stargate, but still more than 200 feet from it. The stargate faces away from the structures and into a stone cliff face.
Dug into the cliff face are two bunkers, each of which are off to the side and have converging lines of fire so they are able to fire at anyone exiting the stargate without risking the safety of those behind it. They both have a .50 caliber machine gun and a GDO computer that opens and closes the iris with palm print identification. The DHD is stored in a room accessible from either bunker via blast doors that remain shut by default.
This Command Structure should be visible to you and has a spot for each of your characters. At the bottom of the page are some selectable boxes, I recommend setting the first one to Birth, then max out the numerical ones. When entering your characters, set the Birthplace field to your Rank/pay-grade.