To add a new category to a page you can click the Category button at the bottom of the page and type in the name you'd like your category to be called.
A full list of existing categories can be found at Special:Categories.
Pages in category "Browse"
“ A weapon can be outfitted with one optics module and at least one other weapons attachment. You...
Weapon Optics and Attachments
“ Station Cash is SOE's in game currency. It has a value of 100 SC:1 USD, and can be...