Logistics

Army Sustainment Resource Portal: The end all be all collection of Sustainment resources.  This portal contains all the resources necessary to successfully navigate CGSC (ILE)- https://cascom.army.mil/asrp/

The most important files therein are CUI, downloadable from Milsuite by CAC, and I cannot share them here:

The Sustainment Force Structure Book: Every SUS unit in the Army with illustrated MTOEs

OPLOG: The LEW below is vastly outdated, and unintuitive though useful and unclassified/controlled.  The OPLOG linked is updated, exhaustive, and more user friendly.  Note that these resources are SIPR restricted in addition to needing a CAC, so personal devices wont cut it.  

Useful Ecclesiastical and Personnel Services/Support Info:

Below are things useful in ILE or for UMOs, but excessive data for typical CH duties