i dont know why your are complaining about it being a short game if you made the choice to leave early, in my opinion the last hour was the best, the pontoon was brought out after lunchish, huge south charges and it seemed to me that there were loads of great marshals suddenly sprinting everywhere.
I played up untill 4.30, i think it was and thoroughly enjoyed it, although that was probably because i was stupid enough to listen to people when they were telling me to charge across the bridge whilst they stayed back and 'covered' us..
Slightly off topic but whats the webby for this stargate themed game please, it sounds like it oculd be very cool.