You recognise those packages from the S3_ in front of the package name.
Some important info for mappers:
The package does contain two groups, which are both the same, except in size.
This enables you to reduce lag, depending how big the your decoration is you can pick the size you want.
The smaller ones are:
Normal: 32 pixels x 32 pixels
S3TC: 256 pixels x 256 pixels
The larger ones are:
Normal: 128 pixels x 128 pixels
S3TC: 1024 pixels x 1024 pixels
Therefore use it wiselly.
Again do never break up the packages, treat them as they were Epic original, if you do so, it will break the S3TC compatabillity !
Another remark would be, you have to align excact
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