[USMC] Headquarters. #10269505

members (measured 12 Oct 2026, 23:54 UTC)

5 April 2021

created (per Roblox API)

10 August 2026

first measured by this register

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
31 Aug 2026, 07:07	1	first reading

Ownership

Owned by Unknown2002 (@BigHQ1_Dojin) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

Unknown2002 (@BigHQ1_Dojin) — [CJCS] Chairman of the Joint Chiefs of Staff (rank 255)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

[CJCS] Chairman of the Joint Chiefs of Staff0

[VCJCS] Vice Chairman of the Joint Chiefs of Staff0

[JCS] Joint Chiefs of Staff0

[CMC] Commandant of the Marine Corps0

[ACMC] Assistant Commandant of the Marine Corps0

[SMMC] Sergeant Major of the Marine Corps0

[DMCS] Director of the Marine Corps Staff0

[IGMC] Inspector General of the Marine Corps0

[DIGMC] Deputy Inspector General0

[SJA] Staff Judge Advocate0

[DC] Deputy Commandants0

[OTC] Office of the Chairman0

[OC] Office of the Commandant0

[CS] Command Staff0

Member1

[AP] Awaiting Placement0

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.