[:] Black Mesa Security Force #35805924

members (measured 22 Sept 2026, 19:14 UTC)

29 March 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 We do not publish numbers we have not measured.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
8 Sept 2026, 19:59	1	first reading

Ownership

Owned by ThatOnePilot (@Steven8787RBLX) 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

ThatOnePilot (@Steven8787RBLX) — [O-3] Captain (rank 255)

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

Rank structure

[O-3] Captain1

[O-2] First Lieutenant0

[O-1] Second Lieutenant0

[W-5] Chief Warrant Officer 50

[W-4] Chief Warrant Officer 40

[W-3] Chief Warrant Officer 30

[W-2] Chief Warrant Officer 20

[W-1] Warrant Officer 10

[E-9C] Sergeant Major of the Army0

[E-9B] Command Sergeant Major0

[E-9A] Sergeant Major0

[E-8B] First Sergeant0

[E-8A] Master Sergeant0

[E-7] Sergeant First Class0

[E-6] Staff Sergeant0

[E-5] Sergeant0

[E-4A] Specialist0

[E-4B] Corporal0

[E-3] Private First Class0

[E-2] Private0

[E-1] Private1

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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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.