I never once played a mechwarrior game but I got a copy of this in the box when my parents bought me Tribes and I absolutely loved it. I've never spoken to anybody whose even heard about it let alone played it.

I've played through the Saboteur at least 3 times and really enjoyed it (remember the heavies flamethrower guys being really annoying). I also remember Yahtzee's ZP review praising it quite a lot at the time which was rare in those days.