@AlphonseDisciple I've seen my own guild captain running scarabs semi- effectively - but only because it's a trick, the people he's fighting don't get the little screen-play he pulls off. They don't make scouts so they're just reacting. A single scout can stop a JJT/MG/Scarab rush by itself - so, no excuse.
I didn't think Buggy - but you're right. What do they counter? Riflemen/mil's - flames/disruptors - snipers/confessors? I haven't seen the match up much - but they SHOULD effectively take down Drones/Talons/Venom/Phantom etc effectively? But that's just it - they don't do enough damage - even verse what they counter. And for 30 tiberium it's a little risky sending them out into the wild to scout. I see a lot of people use them... but they probably shouldn't be.
I don't really use tech but I would grant confessors plus cyborgs match up nicely - should be able to take anything except a flame tank. I haven't seen it - but between slowing down a wolverine and speeding up the cyborg - do they take down a wolverine? But there's nothing a confessor can really do that you couldn't pull off with a laser and flamer.....
I think if Nod got another infantry to fill it out better - Confessor might make a nice 'splash' unit to come in later and bolster a strong infantry play.