[-] United States Marine Corps Headquarters. [-] #12525470

members (measured 22 Sept 2026, 02:28 UTC)

8 October 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 We do not publish numbers we have not measured.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
8 Sept 2026, 14:30	1	first reading

Ownership

Owned by @Hilton_pcplayeralt 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

@Hilton_pcplayeralt — [HRE] Head Royal Engineer (rank 255) terminated

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

Rank structure

[HRE] Head Royal Engineer1

[JCS] Joint Chief of Staff0

[VCJCS] Vice Chairman of The Joint Chief 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 Marine Corps Staff0

[IGMC] Inspector General of The Marine Corps0

Member1

Guest0

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

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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.