If it's just 2 players, you should have a scout in the air on defense to defend against this tactic. Bombers which HAB are sitting ducks to be shot down, especially if you don't have a tail gunner to rocket the Shrike.
Goon Haven - News, Info, Etc
There was a Tribes Vengeance and some cool guys were developing a Starsiege 2098 or whatever it was called that blended both the Tribes series with the precursory Starsiege mechas.
Tribes Hardware Requirements (all releases)