there were times that you just lost a fight and realized you forgot to build units and floating on 20k.
there were times that your economy was so good that your cash not going down even you never leave the queue empty sure you could put that cash onto infantry but there are some situation that you need more armour and fragile fresh not gonna cut it
here is suggestion. MBTs are so obsolete in late game in MO, they might be some of useful in situation I mentioned above if..
build time. yes make MBTs especially gain more benefit from Multiple War Factory. example just an example imagine you could have 50 Bulldogs (lol just for the obvious picture) out of WFs instead of 1 Abrams by 10 seconds. it is obvious to choose 50 Bulldogs over 1 Abrams if you happen to face the said situation. sure it's extremely cost ineffective but it undoubtedly gonna help you in that situation. we definitely gonna see them more that way.
with this we might even get more strats like build more WF instead of rushing tech meta in MO.
also personally I think this is very convincing feature for MBTs to have.
I think you can do this with BuildTime.MultipleFactory= ? oh another idea I came up while ago. I think Hero buildtime shouldnt get boost from multiple barracks.
hope this make your brain spins a bit