I'd never played this game before and only vaguely remember it from when it originally came out.
I even sort of remember someone recommeding it to me.
The first thing I noticed about the environments is that it reminded me of the ones I remember from MechWarrior, a game I very much enjoyed.
While this game doesn't have quite the same dynamic, it is immense fun to play, from the general mass destruction of some missions to the surgical strikes of others.
The voice acting is pretty good on the whole, although some dialogue is a bit cheesy.
The AI is good apart from the pathing, with your units frequently getting stuck on terrain on objects, or cancelling your carefully queued instructions for inexplicable reasons.
Its best to check on them now and again just to see what they're up to.
Considering its age, and the minor AI issues, this gets 5 stars from me, some contemporary games makers could learn a thing or two about playability!