Here's an alternate suggestion for the "division". I still highly doubt the Mollies would go for a divided Dublin - but that's the Council's business.
This division gives each "faction" a mineable field. Arranmore has the south field, around the Omega 49 hole (which is the richest in Dublin). IMG could work the north indy field, and BMM the east one. Mollies will likely continue to demand mining licenses anywhere - but this could cause BAF to focus mainly on the east field, and put up some resistance to them there. I'm not saying that each faction should ban eachother out of the other's field - I imagine BMM would still want to work the north field too sometimes (and IMG in a crazy mood the east field).
I've also drawn zones of roughly 15K around each base to include that as the perimiter.
For IMG I included the Hood and it's field, as the races are held in there (field itself is pretty much worthless for mining). The center independent field also falls in the IMG sphere - but it's worthless for mining. It does have the jump holes though, I can imagine the BAF will want to patrol there.
BAF gets zones around Essex, the London gate, and the Graves field. For practicality I assume BMM assets to be guarded by the BAF.
The Mollies get the Arranmore asteroid fields - which includes the richest spot in Dublin in the south field.
Let's be frank. Noone gives a crap about the open space in Dublin. The asteroid fields, especially the richer ones, are the bone of content. The two independent fields is where BMM and IMG usually go. The southern Arranmore field is where Mollies usually are when mining (and to some extent, IMG as well these days). And there's the natural bottlenecks that the Jump Gate and Jump Holes (especially the one to Leeds) form.
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