[MRR] Marine Raider Regiment - USMC #12555103

3

members (measured 31 Aug 2026, 16:58 UTC)

10 October 2021

created (per Roblox API)

10 August 2026

first measured by this register

Description

Marine Raider Regiment [MRR] is in-charge of special reconnaissance, direct action, unconventional warfare, special reconnaissance, they are MARSOC's main combat units. Primary Mission Assignments: Parris Island: Conduct patrols and counter-raids, directly supporting the security of USMC property and facilities Respond and engage raiders. External Games/Maps: Dominate in scrimmages and raids against enemy groups.

Written by the group; not a statement 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 We do not publish numbers we have not measured.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
16 Aug 2026, 13:42	3	first reading

Ownership

Owned by USMCHolder (@Rack_Emup) as measured.

Members we’ve seen

USMCHolder (@Rack_Emup) — Holder (rank 255)

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

Rank structure

Holder0

Commander In Chief0

[SECDEF] Secretary Of Defense0

[MCS] Marine Corps Staff0

[CG] Commanding General0

[DCG] Deputy Commanding General0

[CSM] Command Sergeant Major0

[CO] Commanding Officer0

[XO] Executive Officer0

[SM] Sergeant Major0

[BCO] Battalion Commanding Officer0

[BXO] Battalion Executive Officer0

[BSM] Battalion Sergeant Majo0

[CCO] Company Commanding Officer0

[CXO] Company Executive Officer0

[CFS] Company First Sergeant0

[PL] Platoon Leader0

[PS] Platoon Sergeant0

[1P] First Platoon0

[2P] Second Platoon0

[3P] Third Platoon0

[4P] Fourth Platoon0

Member3

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 Śtates Marine Corps#10916050 · 1 shared members

[2MD] 2nd Marine Division - USMC#12554952 · 1 shared members

4

[NCIS] Naval Criminal Investigative Service - USMC#12555161 · 1 shared members

4

[TECOM] Training And Education Command - USMC#12554993 · 1 shared members

3

[3MAW] 3rd Marine Air Wing - USMC#12554965 · 1 shared members

3

[MRTC] Marine Raider Training Center - USMC#32851751 · 1 shared members

3

[1MD] 1st Marine Division - USMC#12554933 · 1 shared members

3

[MF] Marine Force Recon - USMC#12555274 · 1 shared members

3

[QMC] Quartermasters Corps - USMC#32899690 · 1 shared members

3

[BSoP] Basic School of Policing - MPC#12567160 · 1 shared members

3

[HQMC] Headquarter Of The Marine Corps - USMC#13981573 · 1 shared members

3

[EWS] Expeditionary Warfare School - USMC#15089189 · 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.