StarDrive 1/1 gave a full explanation for the name change in the preface. They had a falling out with FASA, but the publishers went bust after that issue, anyway.
The StarTrek Wiki (dare I say) has
an excellent entry for the StarDate magazine. What is important to note for volume 3 is the sub-title of issues 5 and 6: "Your Official
BattleTech Connection" - which it was at the time.
I think there's a mix-up with the MFUK miniatures listing.
AFAIK, MFUK originally produced their miniatures by themselves.
A few years after MFUK went under, RalPartha UK picked up some of the miniatures and presented them in a cleaned up iteration.
I ordered some last Sunday, which was the last day they were available. They've gone offline now, due to legal technicalities.
The Ral Partha stuff was:
MFUK001 - Mad Cat KH
MFUK002 - Warmmer WD
MFUK003 - Dreadnought
MFUK004 - Catapult K2 (RS 3039)
MFUK005 - Hades
MFUK006 - Rifleman II
MFUK007 - JagerMech IIC
MFUK008 - Hydra
MFUK009 - Katyusha
MFUK010 - Templar
MFUK011 - Tree Frog
MFUK012 - Falcon Eyrie
MFUK013 - VARIANT Weapons Pack #1
MFUK014 - VARIANT Weapons Pack #2
Technically, due to the clean-up, those are different to the MFUK originals; that is splitting hairs though. What is not splitting hairs is that Axman, Yen-Lo-Wang, both Highlanders, and Mackie ( :'( - the MFUK version looked just like the SL book one and seems to have been an original sculpt...) were never on sale by RPUK.
The "MFUK0xx" numbers above were the RPUK catalogue nos.
MechForce Germany has 2 official member 'Mech miniatures.
AFAIK, they also sold some kitbashes through their webstore about a decade ago, which have long disappeared. Should I go poking about those?