Lately there is an increasing number of new maps with a broken preview in the FA Vault but there is a way to fix that. Tut includes some of the basics for new mappers just in case.
Preparations: First you should make a copy of your map in a seperate folder to avoid problems, make a new folder somewhere and copy the map.
I assume you want to upload a map to the FA Vault. The preview pictures in the FA Vault are not working ATM but you can use a small trick to get a working picture in the FA Vault:
I Make sure you are in SupCom mode:
Unlike FA SupCom mode will generate a working map preview for The Vault!
II Now enter The Vault:
III Preparing the upload:
a) go to upload and select the folder you created earlier as upload location and select your map:
b) Now you can enter all the important infos about your map:
- download description (will appear when you hover the mouse over a map in The Vault)

- keywords for the search
- terrain type (search again)
- more search parameters
- test your map
c) Testing your map:
If everything is working your test will look somewhat like this. You can also generate a test download! The vault will generate a map you can play on your system
before you upload it to the vault. This is extremely useful and can help you to find problems like missing custom textures and mass spots that are not aligned with the grid.
Note: The test map folder will get the version 9999, keep that in mind when you are testing custom textures and decals!
IV Switching back to FA mode:
Leave the vault window open and switch back to FA mode in the GPGnet main window. When you return to your map upload the preview picture should still be working! If everything looks good:
V Click UPLOAD!
PS: Updating maps in the Vault doesnt work either so youll have to ask one of the admins to delete your old map (try the chat, thats the fastest way).
PPS: If you found this tutorial helpful and need some help with other stuff take a look at my
List with useful map making links