My thoughts are the same as Forcedprefect's. When it comes to rules/stats, I don't think arguing the difference between a machete and a scimitar, a tommy gun and an MP5, a M1911 and a Glock, etc would be beneficial.
There are weapons you might want to make special stats for 'cause they don't have period equivalents. Like, say, rocket launchers. But those are gonna be rare outliers. And TBH, I feel like I'd want to avoid anything that'd be either too powerful, or which a mere investigator wouldn't believably be carrying around.
But also: Sorry for the lack of updates so far.