This is great, but I would prefer a MediaWiki-based platform (like Fandom) for flexibility and version control. I also think using an existing wiki platform (again, like Fandom) would help with search engine optimization (SEO).
There are XenForo wiki plugins that can come close, so if we stick to DefenceHub Military Database, some admin can extend it to work more like a wiki. Personally, if some consensus can be formed and someone takes the lead, I'm down with whatever. These are just my observations, we can workshop a solution with folks willing to commit to this.
Edit: NVM XenCarta 2 is already installed, maybe just needs some polish