Why did you DMCA me

Its likely that you re-uploaded an RKSL Addon without permission.

Re-uploading our content is not allowed. http://eula.rkslstudios.info/ And this our policy for several reasons:

1. Reuploading someone else’s content violates the Steam License - Section 6D - By uploading someone else’s content you are giving away rights to content you do not own.
2. Uploading an unsupported version can and does cause the real Author loads of support problems. Especially when that version becomes obsolete. Conflicts become impossible to track down.

If you want to create a specific mod pack for your group Use Steam Collections, thats what they are there for.