like this standing order for example?
http://www.uboatarchive.net/BDUOrder302.htm
and this?
http://www.uboatarchive.net/BDUOrder43.htm
a great companion to the standing orders and operational orders is this!
http://www.hnsa.org/doc/uboat/index.htm the latter was ObLt. Jobst's submarine commanders handbook from U-2326 a Type XXIII surrendered may 14, 1945 Dundee, Scotland and was very much still in use up to the end of the war. And standing orders superseded dictum in this manual as lessons were learned and re-learned.