Oh just had this idea a moment ago. The OF perk of getting a Core 5 should have no other requirement beyond being an OF. I'm not a fan of how tied into everything PoBs are, as I think it limits creativity, but if a group manages to get to OF status, then I don't think an additional vague requirement of "enough RP with other groups" should be considered at all. Ignoring the fact that a lot of factions don't even have groups they can do this sort of RP with, the completely undefined requirement for the Core 5 upgrade means that a severe bias is given towards Corporate IDs, as they have a lot more of an inRP "reach" that they can use to interact with other groups.