There's a semi-official/unofficial handbook on the way right now. LTC Nagl is heading up the effort using a bunch of former MiTT's here at Leavenworth to write the guide. First draft should be done this month with a goal to get it out this quarter.

Still in rough copy status right now.

Officially, there is a multiservice TTP manual being run by the USMC and JCISFA that will also be published this year (most likely)