I have been looking at this for the last few days and have a possible decode. The underscore could be designating a missing letter. As Q has done in the past. So I started by looking for words that are scrambled within the main body of CASTLE ROCK. Being that this is in a context of part of a time line one word stands out. "CLOCK" which leaves " _ASTER". There are several words that you can make out of this using different letters for the underscore but ONE stood out to me using the letter "R".
"ARREST CLOCK"
Hard to say. Little is known about the protocol itself as it is classified. COG/COOP is closely held info. You may be able to do some digging here: https://fas.org/irp/offdocs/pdd/fpc-65.htm
Re Q4414 - IMO, it sounds like an event will be triggered as the countercoup is executed necessitating the relocation of key personnel to locations like Site R, Cheyenne Mountain or other locations.
You'll find that the Q adherents aka GA.win users are far more educated on these subjects than those on TDW.win.
I am finding that in one string. Had I known you guys were here all this time, I would’ve been here instead dang it.
Thank you for the information
Welcome to the party.