first Veterancy:
Example with UEF
1 (20 kills) 13200hp (+1200hp) 13hp/s (+3hp/s)
compared to cybran
1 (20 kills) 11000hp (+1000hp) 18hp/s (+3hp/s)
You notice something?
I suggest following:
Regen rate 18 hp/s
You will need 1,8 Minutes to get more HP then the UEF one. This sounds strong on paper, but raw HP got additional benefits that are expained below. This change is additional.
Veterancy:
Level New Health New Regen Rate
1 (20 kills) 11000hp (+1000hp) 22,5hp/s (+4,5hp/s)
2 (40 kills) 12000hp (+2000hp) 27hp/s (+9hp/s)
3 (65 kills) 13000hp (+3000hp) 31,5hp/s (+13,5hp/s)
4 (90 kills) 14000hp (+4000hp) 36hp/s (+18 hp/s)
5 (120 kills) 15000hp (+5000hp) 40,5hp/s (+22,5hp/s)
Instead 200 HP of UEF Acu, you get 1,5 hp/s more per veterancy (currently you get nothing?!). Before 2,2 Minutes, this bonus will be weaker, after 2,2 Minutes it will be stronger then UEF one on paper. Ingame, imho, the UEF Acu will have even more advantages. I.e. often both ACUs are full HP, and you won't get anything out of your regen, you can bully early with UEF ACU and cybran one must retreat possibly, leaving mapcontrol behind that will give you additional disadvantages in this 2,2 minutes, or i.e. when your commander gets sniped, raw HP can make the difference between win and lose of the game. There is even more, like, a UEF veterancy can make you survive a steamroll of 1 units, a cybran veterancy won't. So i don't think this change will make cybran ACU really strong. It will still be weak and paper. But you can utilize its strenght a little better.