OK, let's break it down.
Blackster wrote:"Take other faction", "deal with it". Yes, really helpful, thanks.
Stealth (1/3 mass and 1/20 energy cost of shield upgrade on UEF or Aeon) and gun is strong in early game. This is also viable in later stages, provided you use OC and don't venture out into the open or go on a rambo mission. I'm assuming you do make other units to push. You are not playing a game with ACU's only.
Blackster wrote:Cybran ACU most of the time seems utterly useless in late game phase.
Quite the contrary, I would say with telemazer Cybran is the ONLY race where an ACU can finish a (super) late game effectively. In team games telemazer can be rushed at 20 minutes in.
Blackster wrote:Building pd2 AND gun won't work either ofc.
Why? You could build two T2 pd for the mass you saved by going stealth (compared to shield upgrade on UEF / Aeon). also you could use the energy you saved for making more air. Your opponent will probably have to stop air while getting shield.
Blackster wrote:And finally, it doesnt even have ARAS - so it literally sits kinda useless (RAS, sure) in its home shelter waiting for the war to be over xD
UEF also doesn't have ARAS.
Blackster wrote:Intially, I was mostly interested in the status of cloak.
Cloak is underused, probably because omni cover (spy planes) counter it so easy.