Simply put, I think it’d be neat if the unlockable radar would show PVP players in the plaza as red enemies, instead of the same light blue as allies.
I think it’d just be a fun attention to detail, as well as rewarding to players who like the PVP side of the plaza furthering incentive to earn it.
I don’t think the geiger counter noise would be necessary, but if it is added along side the radar’s visuals, perhaps a toggleable setting to turn it off for visuals only.