[ 1st MEF ] 1st Marine Expeditionary Force #36101127

members (measured 8 Oct 2026, 14:05 UTC)

12 June 2025

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 We do not publish numbers we have not measured.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
6 Oct 2026, 19:04	3	first reading

Ownership

Owned by Mason (@MasonTraxler) 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

Mason (@MasonTraxler) — [ + ] Holder [ + ] (rank 255)

THR1LS (@Daveiscool164) — [ HQ ] Headquarters (rank 254)

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

Rank structure

[ + ] Holder [ + ]1

[ HQ ] Headquarters2

[ CG ] Commanding General0

[ DCG ] Deputy Commanding General0

[ MEP ] Marine Expeditionary Brigade0

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬0

[ BC ] Battalion Commander0

[ RC ] Regimental Colonel0

[ OpM ] Operations Major0

[ CCapt ] Command Captain0

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬0

[ EL ] Expeditionary Lieutenant0

[ CS ] Company Staff0

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬0

[ GySgt ] Gunnery Sergeant0

[ OpSgt ] Operations Sergeant0

[ ET ] Expeditionary Trooper0

[ CR ] Combat Recruit0

Member3

[ IM ] Initiate Marine0

Guest0

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

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Groups whose measured members overlap with this one — a sample from our membership graph.

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| The United States Navy Academy |#32073903 · 2 shared members

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[USMC] HG50's Marine Corps#35060336 · 2 shared members

[MUNA] Military Armed Forces#36049058 · 2 shared members

[ 3rd MAW ] 3rd Marine Aircraft Wing#36099268 · 2 shared members

| | MARSOC | | Marine Special Operations Command#16136035 · 2 shared members

[ USMCMP ] Marine Corps Military Police#36094087 · 2 shared members

Quataun#12121240 · 1 shared members

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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.