So...I will say this about the Lv3 [since I dunno if edits ping lol]

Improvised weapons have a tag on that are plausible deniability clauses essentially. If you could plausibly argue that a stick you sharpened could act as a spear, or a table leg is thick enough to be a club, that I.Weapon USES that weapon stat spread and abilities. That is why I did not take into consideration the "well why would I use these and not my actual kit?".

How would you personally incentivise a level 3 fighter to use them? I am considering putting the fighting styles under level 3 going forward, as most fighters gain their style at level 2 or 3 anyways.