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After you cook, you'll notice that your mod package has cooked to a directory like UDKGame\CookedSDK\AOCSDKLevels_E1ED54B24E9F8DE8C917B1ABC51E4040<GUID GOES HERE>. The bolded component there is the mod package's UIDGUID. You'll want to save this UIDGUID. In the future, when you want to recook this same map/mod package, you should add the guid to your cook command.
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- $PackageDirectory – should correspond to your mod package subdirectory in CookedSDK. For instance, for a subdirectory at ChivlaryDirectory\UDKGame\CookedSDK\AOCSDKLevels_E1ED54B24E9F8DE8C917B1ABC51E4040<GUID GOES HERE>, use "AOCSDKLevels_E1ED54B24E9F8DE8C917B1ABC51E4040<GUID GOES HERE>"
- Map-only packages: make sure this is "AOCSDKLevels_xxx" (where xxx is your package's UID, which should be part of the subdirectory's name)
- $Description – the description that shows up in the Workshop. This can be edited after you've uploaded.
- $Title – the title that shows up in the Workshop. This can be edited after you've uploaded.
- $PreviewFile – a 512x512 image file which should be in the same directory (i.e. ChivlaryDirectory\UDKGame\CookedSDK\__CMWSDKFiles). You can use PNG or JPEG, though PNG is usually preferable (no compression artifacts)
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