While you're taking the approach of being friendly to new factions, it doesn't make much sense roleplay-wise.
The Foreign Legion was historically something that all foreigners belonged to, volunteers or draftees from the Taus and Leeds. Unfortunately, since the thread has been nuked for a while, I can't link it - but it was still a concept that existed with GRN. The Foreign Legion always answered to the King and Royal Navy officers, and they weren't influential because of being mainly composed of foreigners.
My main issue/point is that RN seems to always take the option that goes against common sense and breaks perspective of what your faction is. Despite the fact that your faction description says that you are a division of GRN, your actions seem to appear as if you were a completely independent, not related to GRN or its diplomacy in any way.
Two examples come immediately to mind:
KSP offering joint training to the GRN - while every other GRN representative has shown skepticism to foreigners as is usual (especially to a police faction and not the government/navy), RN, going against the theme, has decided to agree to provide joint training for KSP, despite being in an all-scale war with multiple Houses, and even going as far as agreeing to provide GRN technology to it (which they deeply hold on to, to not lose the technology advantage to Sirians).
Asking the Zoners (and Sirians in general) to help with military supplying - The Zoners are historically hostile to GRN, iirc. They have never done anything nice to us besides shoot us in the Tau/Baffin systems. Note that while OSI/IRG are companies that were helpful before, but the average Zoner wasn't. They really should be treated skeptical at best.
Please don't get me wrong, I don't condemn your efforts in trying to promote activity, but is this the correct way to do it? Either your faction attitude or your faction lore needs to be altered to fit.
On a side note, please try to encourage more fair play - I've mostly seen needless ganks recently that left everyone feeling bitter.