on gun crafting and mod NOTcrafting:
You cannot craft mods, they will be found in loot, treasure, quest rewards, and possibly secret stash. They don't need tiers since we aren't limited on item ids anymore, that means more specifically named mods that might do similar things but with wildly different side effects. This is more horizontal so it didn't make sense to have one thing be T1 and another be T2 when they aren't technically better than the other, they just share a common main stat. This means you won't be looking for a purple mag extender. You'll be looking for a 45 round AR banana clip, 20 round extended pistol clip, etc. One variant may cause it to randomly jam (jerry rigged some crazy spring system to allow for it) while another might alter the kick from the change in weight. Just two examples off the top of my head, nothing that's put in as such yet. I exposed a LOT of variables so we have tons of things to mess with.
We have a progression system that we have put a lot of design work into for a17. You won't be crafting high tier items in week 2, not without sacrificing on improving something else early on. You'll be allowed to focus on just grinding up your intellect/crafting skill all you want. But doing so means not improving your max stamina, max hp, melee abilities, tool usage, etc until later on. So sure, you'll be able to make nice guns but you'll be crap at handling them until you start putting points into that too.
You definitely won't be swimming in exactly what you want. We've always been pretty good at keeping that from happening.
The Rate of fire mod in the video was a 200% fire speed. It was simply for showing off what the new systems are capable of and you likely won't find a mod in vanilla that would make the pistol fire 600 rounds per minute. Showing a slight difference in speed isn't all that exciting but even a small bump in RPM, say 60, means another round of X damage per second. So numerically it adds up faster than visually hence cranking it up to 11.5 for the video.
/mini_data_dump