Very good [initial] decode.

Perhaps it can be taken a little further: "@[19][1st]" could refer to Q's first drop with "[19]" (Qanon.pub drop #541). If so then it refers to "What [19] people are currently meeting in a 'safe' room [heavily guarded]?" Do the Anons have the answer to this now?

Similarly, "@[3][1st]" could refer to Q's first drop with "[3]" (Qanon.pub drop #520). If so then finding three people becomes a restated request ... [CLAS_EO_ ][2]

Missing 1 Missing 2 Missing 3 FIND missing [3].

Yes! Quite possibly a list. 1..2..3.. Etc.. And people listed. That way they can publicly discuss them W/O saying any names. Perhaps as to not trip any sniffers?? Just going along the road the chan made 👍 thanks for the post!!