GMG should have a gunboat. Why? They do not operate in Crow Nebula only, not anymore. Their rivals have upgraded their tech and GMG, with their para-military potential, should prepare for the worst.
I mean, GMG can afford that. They are one of the few factions (namely just IMG and PERHAPS Junkers) that could start their own colonization efforts, without third-party bodies (maybe just little Planetform help).
