I know that this was discussed a lot in the past but - as far as I know - there has not been a solution found yet. Due to the reorganisation of the lobby and a official balance-councilor (congrats Zock and good luck at this hard(est) job) i want to bring up this again, hoping that there might be some tests in the next balance-period. As topic says its about the UEF Com-Upgrades.
Nano
Especially the Nano is known as useless in comparision to t2 upgrade, and i dont want to repeat what was brought up so many times - i just want to recall it so its not forgotten when it comes up to changes. I personally like the idea of it becomming a pre-status to the shield, so you can have Nano -> personal shild -> bubbleshield. As the UEF is the "tanky" faction with HP superior to all other facions, i think the idea of a super-tanky ACU fits very well into this image. Just 2 cents on that.
Teleport
Additionally i come up with a suggestion about the never-used teleport-upgrade. We know teleport use from Telemazer and sera and aeon sACUs. Mostly they are on sniping-missions against t3-Arty or SMDs, except some scus getting up nasty stealth-proxy-tml-bases.
And exactly this is the kind of task i think what the UEF-ACU could be good at: An End-Game Proxy-Base-Builder. It would be something very different to Cybran-Telemazer so it keeps up faction-deversity and could leed to very intense situiations. To do this, there might be an extra tool needed: A T4 Buildingsuite, with maybe 200-400 bp, and to make it more risky the reload-time for the teleport could be increased.
I have no specific proposals for the values and i haven't done any math because i want to suggest the concept, and if it is liked the values can be found later on.
cya on the battlefields