The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- CC (4 members)
- Halo Flashpoint (81 members)
- Item (13 members)
- Keyword (41 members)
- Pages using DynamicPageList3 parser function (1 member)
- Pages using DynamicPageList3 parser tag (3 members)
- R1 (2 members)
- R2 (1 member)
- R3 (3 members)
- R4 (6 members)
- R5 (2 members)
- R6 (6 members)
- R7 (1 member)
- Tracking templates (1 member)
- Type I (2 members)
- Type II (8 members)
- Type III (3 members)
- Weapon (29 members)