Fwiw, it's also easy to include more modern firearms in there by fiddling with weapon qualities and referencing the "techno-junk" stuff in the Numeria modules (although that's not exactly "modern" per se). The one big thing I'm really waiting on for in 2e PF is the "tech guide",...
“if it’s a melee weapon with the thrown trait”. So if you’re shooting a ranged weapon with ammo, Devise A Stratagem is fine (Bard v. Smaugis upheld); if you’re using something like a throwing axe or javelin, the weapon has to be agile/finesse. Don’t worry, though: if I ...