Not a huge amount out there on Niops. They were mentioned in both versions of the Periphery book FASA1629 & 1692, Field Manual Periphery & Field Report Periphery (AFAIK the most recent reference) Field Manual Mercenaries Update in the section on the Black Heart Roses & in TRO3075 in the section on the Nighthawk PA(L). Let me know which ones you've read & I'll post some info from the others.