Clever idea, ambitious execution. A good first outing for a fan film group.
Here is my short review, with some constructive criticism
(no significant spoilers):
The dialogue could have used some additional editing... unless it was the actors going off-script. Whatever the reason, there were quite a few grammatical atrocities that detracted from enjoyment :| This is an easy thing to fix in future episodes just by passing the script through more hands before filming
Also, the director should coach the actors to improve their pacing a little bit. Most of what makes the Stargate series work so well is the chemistry, the way the actors bounce their performances off of eachother. I think you picked up on that eventually though, since this particular aspect of your film seemed to improve a lot in the second half.
I enjoyed your guns. And your excellent decision to use a mine as a shooting location.
I also liked the creative solution to the use of the helicopter. I thought your explosions worked very well. Obviously special effects aren't an issue for you. In some of your shots, I couldn't even tell if it was CGI or real pyro going off. Good stuff B)
A lot of the actors did seem like they were struggling to remember their lines. But overall, very fun to watch. I would definitely watch future episodes from this fan group if they are produced.