|[BA]| Officer Training Service [OTS]. #13129639

members (measured 25 Aug 2026, 02:53 UTC)

4 December 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 We do not publish numbers we have not measured.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
10 Aug 2026, 22:07	13	first reading

Ownership

Owned by @MC1AccountHolder as measured.

Members we’ve seen

@MC1AccountHolder — Chief of Defence (rank 255)

@En4rcerI — Headquarters (rank 103)

@Sargento_major — Graduated Officer (rank 58)

everything00pmo (@Cameronblazer123) — Graduated Officer (rank 58)

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

Rank structure

Chief of Defence1

Headquarters3

Overseer of Education1

[DIR] Director0

[SOA] Senior Officer Advisor0

[CCI] Chief Course Instructor0

[SCI] Senior Course Instructor0

[CI] Course Instructor0

Instructor in Training0

Regimental High ranks2

Graduated Officer6

Final Exam [NOT IN USE]0

Phase 3 [NOT IN USE]0

Phase 2 [NOT IN USE]0

Phase 10

Member13

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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|BA| -British Army-#4972535 · 2 shared members

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West Gate Studios#5626478 · 2 shared members

|[BA]| Creators program [CP]#4865850 · 2 shared members

Mythical Clothing Designs#15084571 · 2 shared members

|[BA]| Ministry of Foreign Affairs [MFA]#5168816 · 2 shared members

|[BA]| Corps of Royal Engineers [CRE]#12926251 · 2 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.