The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- APA arsenals (1 member)
- APA characters (8 members)
- Achievement images (8 members)
- Achievements (9 members)
- Actors (2 members)
- Aftermath (7 members)
- Aftermath Allied arsenal (5 members)
- Aftermath Allied missions (9 members)
- Aftermath French cameos (9 members)
- Aftermath German cameos (9 members)
- Aftermath Soviet arsenal (7 members)
- Aftermath Soviet missions (9 members)
- Aftermath arsenals (2 members)
- Aftermath cameos (11 members)
- Aftermath campaign images (14 members)
- Aftermath characters (5 members)
- Aftermath cut content (2 members)
- Aftermath images (8 members)
- Aftermath infantry (5 members)
- Aftermath infantry images (3 members)
- Aftermath mission panoramas (18 members)
- Aftermath missions (3 members)
- Aftermath ship images (2 members)
- Aftermath ships (2 members)
- Aftermath units (3 members)
- Aftermath vehicle images (13 members)
- Aftermath vehicles (6 members)
- Aircraft (24 members)
- Aircraft Stubs (0 members)
- Aircraft by type (1 member)
- Aircraft images (22 members)
- Albert Einstein images (4 members)
- Album covers (18 members)
- Alexander Romanov images (2 members)
- Allied Menu templates (6 members)
- Allied arsenals (8 members)
- Allied character images (7 members)
- Allied characters (34 members)
- Allied images (17 members)
- Allied military bases (8 members)
- Allied missions (8 members)
- Allied organization images (1 member)
- Allies (7 members)
- American arsenals (2 members)
- American characters (12 members)
- American images (1 member)
- American military bases (2 members)
- American missions (2 members)
- Animal images (4 members)
- Animals (16 members)