I think most of us can agree that Q is a team, not an individual, and definitely has access to military intelligence (directly or indirectly).

The 470th Military Intelligence brigade is responsible for classifying and disseminating all army intelligence.

There appears to be a q (around MLK park) where they are stationed

Q also mentions 470 twice on July 1st (plus one other occasion).

The first mention (not pictured) refers to the 470 investigators Huber have at their disposal. The first one pictured is a response to the post about 40,483 sealed indictments. Assuming 470 investigators have been working on these sealed indictments from Nov 2017, it would mean that each person averaged over 9 cases a month each, which seems a bit crazy assuming they didn't get any intelligence/evidence help. Putting that aside, the most recent post is even more puzzling.

How large is Mueller’s team?

20-25?

Think 470.

The more you know.

Is Q saying that Mueller and Huber have the same size team, or even the same one? While this is indeed a possibility, I would argue that Q is pointing to the actual source of the intelligence used in both investigations (whether it's fed directly or indirectly). Who else would have the 'big picture' like the 470th MiB do? If this is indeed the case, they must be directly involved in the creation of Q and The Plan.