Yep, that's more or less how we're doing things (I should really finish up that writeup). The Commando page is a great example of such a gameplay page - the navbox at the bottom has links to all of the weapons gameplay pages that we need making. XScruffyDaSasquatchx is leading that project, and he's been grabbing the weapons stats from each game's modding tools to make the pages more comprehensive. His Gameplay Layout Guide (on his userpage) is the way we're structuring these pages.
In general, the gameplay-lore split is happening for Weapons, Vehicles and NPCs - though Weapons and NPCs are the most developed so-far. I'd say those are the ones to prioritise.
We have a lot of resources in the Discord to help with getting stats and stuff, if that interests you at all.