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United States Marine Corps [C-USAF] #33773862

1
members (measured 29 Oct 2026, 04:01 UTC)
26 January 2024
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 We do not publish numbers we have not measured.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)MembersChange
29 Oct 2026, 04:011first reading

Ownership

Owned by mr_coolio (@mrcoo_lio) 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

mr_coolio (@mrcoo_lio) — President (rank 255)

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

Rank structure

President0
Secretary of Defense0
[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
[SJA] Staff Judge Advocate of the Marine Corps0
[0-10] General0
[0-9] Lieutenant General0
[0-8] Major General0
[0-7] Brigadier General0
[0-6] Colonel0
[0-5] Lieutenant Colonel0
[0-4] Major0
[0-3] Captain0
[0-2] First Lieutenant0
[0-1] Second Lieutenant0
[E9B] Sergeant Major0
[E9A] Master Gunnery Sergeant0
[E8-B] First Sergeant0
[E8-A] Master Sergeant0
[E-7] Gunnery Sergeant0
[E-6] Staff Sergeant0
[E-5] Sergeant0
[E-4] Corporal0
[E-3] Lance Corporal0
[E-2] Private First Class0
[E-1] Private0
Member1
RT0
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.