its unfair that a 1800 mrls can kill a 3000 banshee in less that 1 full barrage, like come on its not even supposed to be an aa unit, also speaking of aa units, Nod tonguska's rockets are a litte op in that of their range, and its quite unfair that they're hoaming, if Nod is pushing with at least one tonguska gdi cant really use any airpower, since you need around 5 or 6 rockets to kill a firghter and everything else has less armour, chinooks are way too slow so even tanks can shoot them down. Also on the other hand Kawasi (the GDI helicopter i dont think im spelling it or the tonguska right xd) rush is kinda op early game, its cost makes it so that GDI can kill the obelisk on most maps within 10 mins of the game, and Nod can stop it, but the combined firepower of Kawasi and the usual lack of Nod intel makes it so the obelisk goes down 90% of the time.
Also on the great wall map gdi and Nod both have tanks for free that can 1shot the mg and tow emplacements, which is kinda op since u can rush with them and just deny the enemy having defences until ur team comes with heavier vehicles etc.