@nex When was the last time you got just 1 of the upgrades and pushed forward? At mid-range skill and above, most players will have sufficient eco. balance to assist & complete the gun in under a minute. The upgrades being separate is not useful, it's a gimmick.
@Sladow-Noob I believe you are mistaking my stance; not zero utility, but lackluster. I agree that both Chrono and Shield are powerful. That does not change the fact that total utility is markedly underwhelming compared to other factions.
UEF: Gun-Engineering/Nano-Shield
Seraphim: Gun-Engineering-Nano
Cybran: Gun-Stealth-Nano
These combinations are all superior to separate guns and a shield. Shield & Chrono are good utilities, but I feel Aeon could use a little something extra since Senors and Engineering lock you out of half the gun.