[ OCS ] Marine Officer Candidate School #603656041

members (measured 23 Oct 2026, 00:23 UTC)

28 February 2026

created (per Roblox API)

14 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 We do not publish numbers we have not measured.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, 19:59	2	first reading

Ownership

Owned by @r4idxrr 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

@r4idxrr — [CiC] Commander in Chief (rank 255)

SKYZON (@JMWPlayz208) — [HQ] Marine Corps Headquarters (rank 253)

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

Rank structure

[CiC] Commander in Chief1

[SECNAV] Secretary of the Navy0

[HQ] Marine Corps Headquarters1

[CHQ] Command Headquarters0

[DIR] Director0

[DDIR] Deputy Director0

[SEA] Senior Enlisted Advisor0

[HI] Head Instructor0

[SI] Senior Instructor0

[INS] Instructor0

[G] Graduate0

[FE] Final Exam0

[P3] Phase 30

[P2] Phase 20

[P1] Phase 10

[AP] Awaiting Placement0

Member2

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.

United States Army #3108077 · 2 shared members

1,435,334

UnᎥted States Marine Corps#5570997 · 2 shared members

384,731

[ USMC ] Unites States Marine Corps#159316575 · 2 shared members

[1MD] 2nd Battalion, 1st Marines#1058072956 · 2 shared members

[ 1MD ] 1st Marine Division#109582793 · 2 shared members

[ USMC ] Marine Training and Education Command#779405586 · 2 shared members

[ 1LEB ] 1st Law Enforcement Battalion#875183989 · 2 shared members

[ 3MAW ] 3rd Marine Aircraft Wing#999662268 · 2 shared members

[ USMC ] Marine Special Operations Command#15682618 · 2 shared members

[ MRR ] Marine Raider Regiment#63089311 · 2 shared members

[ USMC ] Marine Forces Command#95259471 · 2 shared members

[ USMC ] Marine Military Police#367100946 · 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.