The MBF was developed mainly to test out magnetic lock based platforming, in this case, four low recoil weapons. The experimental chasse quickly became too large for its own good so what better use for the extra space than sensory equipment and premium communication systems.

There was never a communications unit in Vertu as everything in Vertu had communications equipment capable of FTL¹⁾ information transfer and a reliable silent broadcast of 2 Astronomical Units (AU)²⁾ The MBF has a silent broadcast distance of 100 AU (things get funky when it comes to information traveling such distances even when it is FTL) and quick note, silent broadcast is a perfectly untraceable broadcast of information typically on a hyper-focused vector where only units within the broadcast angle can hear. The distance this angle becomes so large that it is effectively an open broadcast is the maximum range of the silent broadcast.

The sensory equipment became much more helpful than previous anticipations as, rather unsurprisingly, bigger sensors give more accurate data than sensors that are a CM³ at largest. This has made the MBF a very new mobile operations unit and data retention systems (data banks are just data storage rather then retention, it is best I don't explain the difference) where added to give it the role it has now, support.

The MBF is so new that I have ran out of lore to tell you because that is the modern MBF, nothing much has happened with it. It is a sensory platform using an experimental form of weapon platforming which has been working out.
As for the name, it is a Mobile Operations Combat Platform Unit which houses everything a frontline with advanced technology as Vertu needs. So it is a mobile frontal operations unit, tailored towards combat more than other roles, so, Mobile BattleFront.