-Get your own gun, potentially with nano
-Rush T3 land for sniper bots, they're basically guncom hard counters
-Sera T2 air has the highest damage bombers. If the ACU is dodging bombs it isn't advancing as fast
-Sera has the most flak resistant T2 gunships
-Use zthuees to kill them during the upgrade
-First regen field effectively gives T1 tanks 33% more HP vs gun ACU
I'm sure there are plenty of others, but those are a few examples
1)gun is no solution, because you can't OC his units as him. They're shielded. Yours - not.
2)t3 factory is not a thing that you can rush fast enough to play t3 units on mid t2 stage. If you're going to t3 that fast - you will have no t2 spam at all, and you dead again (check it's cost and buildtime)
3)to play t2 bombers you should win the air first. I consider equal situation. Nothas can't win a fight vs t1 interseptors on equal mass, so if enemy has air spam on equal mass - nothas gonna drop 1 bomb, and then air fight happens, and you loses air.
4) same as 3
5) ridicolous. zthuees gonna die from him spam. arty cannot fight vs tanks on early game. And he's gonna upgrade on his territorry, not on my base
6) t1 spam is uselles against his t2 spam. (And t1 field effectively gives T1 tanks 0% more HP vs UEF 200dmg. gun)