[ - ] Expeditionary Warfare School #220887563

members (measured 17 Oct 2026, 03:46 UTC)

26 June 2025

created (per Roblox API)

11 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 We do not publish numbers we have not measured.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
15 Aug 2026, 00:03	1	first reading

Ownership

Owned by @usmc_ownership 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

@usmc_ownership — [Holder] (rank 255)

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

Rank structure

[Holder]1

[MCS] Marine Corps Staff0

[CG] Commanding General0

[HQ] TECOM Headquarters0

[D] Director0

[DD] Deputy Director0

[SEA] Senior Enlisted Advisor0

[HI] Head Instructor0

[CI] Chief Instructor0

[SI] Senior Instructor0

[I] Instructor0

[JI] Junior Instrurtor0

[ICI] Instructor Candidate0

[G] Graduate0

[PV] Phase V0

[PIV] Phase IV0

[PIII] Phase III0

[PII] Phase II0

[PI] Phase I1

Member1

Guest0

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

Related groups

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

Hawaii United States Marine Corps#33772860 · 1 shared members

109

[ - ] 3rd Marine Aircraft Wing#679393967 · 1 shared members

[ - ] 1st Marine Division#564377600 · 1 shared members

[ - ] Military Police School#437376882 · 1 shared members

H-USMC | Quartermaster Corps#33777160 · 1 shared members

[ - ] Marine Corps Embassy Security Group#963398969 · 1 shared members

H-USMC | Foreign Affairs Department#33781645 · 1 shared members

(-) Marine Raider Support Group#35614139 · 1 shared members

[--] Special Reactions Team#345377082 · 1 shared members

[ - ] Office of the lnspector General#34076035 · 1 shared members

H-USMC | Naval Criminal Investigative Services#33777178 · 1 shared members

H-USMC | Marine Forces Command#33773085 · 1 shared members

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.