UNSC | 12th Marine Regiment | #14643880

26

members (measured 13 Oct 2026, 05:12 UTC)

18 April 2022

created (per Roblox API)

10 August 2026

first measured by this register

Military & clansENmilitaryroleplaymilsim

Description

The 12th Marine Regiment is the backbone of the Marine Corps.

Written by the group; not a statement by this register.

Membership history

Growth

3 measurements spanning 42 days, net +2. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 24–26 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
22 Sept 2026, 17:38	26	+1
12 Sept 2026, 21:46	25	+1
11 Aug 2026, 11:06	24	first reading

Ownership

Owned by Roboute Guilliman (@Impravon) 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

Roboute Guilliman (@Impravon) — Commandant of the Marine Corps (rank 255)

@austinsociety — Headquarters Marine Corps (rank 253)

Shadowmerc (@Shadowmerc14) — Regiment Executive Officer (rank 251)

@Thornwald — Battalion Staff (rank 249)

@ValourSupuritta — Company Staff (rank 248)

Church (@TheBlueChurch) — Platoon Staff (rank 247)

tomas (@tomasolstice) — 1st Battalion, 12th Marines (rank 10)

@Codbro423 — 1st Battalion, 12th Marines (rank 10)

JimmyJohn (@firefighter8910) — 1st Battalion, 12th Marines (rank 10)

Gikendanzii (@NugetDestoroyer) — 1st Battalion, 12th Marines (rank 10)

mryoinksiscool (@KazarkGaardimus) — 1st Battalion, 12th Marines (rank 10)

Coolio (@Ralseithemagical) — 1st Battalion, 12th Marines (rank 10)

PoseidonMaxson (@Afrikhaan) — 4th Battalion, 12th Marine Division (rank 8) terminated

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

Rank structure

Commandant of the Marine Corps1

-----------------------0

Headquarters Marine Corps1

Regiment Commanding Officer0

Regiment Executive Officer1

Regiment Senior Enlisted Advisor0

Battalion Staff2

Company Staff3

Platoon Staff1

1st Battalion, 12th Marines14

3rd Battalion, 12th Marines0

4th Battalion, 12th Marine Division1

5th Battalion, 12th Marine Division0

Combat Support Battalion0

Member24

Infantry Marine Course0

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.

★The United Nations Space Command★#950967 · 12 shared members

The UNSC Marine Corps#924300 · 12 shared members

Hapless Studios#5502618 · 6 shared members

SCP | Roleplay Community#5479038 · 5 shared members

Military Flight Simulator Community#1164372 · 5 shared members

United Nations Space Cоmmand#6732619 · 5 shared members

Pilot Training Club#2794513 · 4 shared members

SEA Military#2648601 · 4 shared members

The Nighthawk Imperium#1174414 · 4 shared members

The Galactic Empire ‌ ‌ ‌ ‌#3145747 · 4 shared members

Naval Roleplay Community#3534363 · 4 shared members

[λ] Half-Life Roleplay#2795144 · 4 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.