DC I is hosting the Spring Marine Corps Cyber Games, a service-wide Capture the Flag (CTF) competition focused on Defensive Cyberspace Operations (DCO). The event runs across four two-session blocks in May 2026, conducted remotely on a SECRET network. Registration is open now, but the deadlines are coming up fast.
Heads up: Registration closes 13 March 2026 for primary ISA inclusion, with a hard late-registration cutoff of 20 March.
Who it affects
This is primarily aimed at cyberspace operators from DCO-IDM (Identity Management) Companies and the Cyber Mission Force (CMF). The competition is open to all services, so if you're a Reserve Marine with a relevant MOS or cyberspace background, your unit can field a team. Teams should have 6 to 10 members (10 max) with defensive or offensive cyberspace skillsets.
What you need to do
- Go to the registration portal at
https://intelshare.intelink.gov/sites/te/CyberBlueZone/and register your team. - If you can't access that link, email your team registration info to all three POCs:
- GySgt Weston Warren:
weston.warren@usmc.mil - CWO3 David Hunsaker:
david.hunsaker@usmc.mil - Dr. David Wells:
wwells@ida.org
- GySgt Weston Warren:
- Submit the following info with your registration:
Session:
Team Name:
Service/Agency:
Command/Organization:
Participation Location:
JIOR/JMN Designator:
Site POCs / Email / Phone:
Team POCs / Email / Phone:
- Finalize your team roster before the comms check for your session.
- Submit an After-Action Report no later than two weeks after your session ends.
Note: participation is subject to approval of the Interconnection Security Agreement (ISA). Late registrations affect that process, so don't miss the cutoffs. Your unit covers travel costs if travel is required.
Key dates
| Milestone | Date |
|---|---|
| Primary ISA registration deadline | 13 March 2026 |
| Late registration deadline (ISA addendum) | 20 March 2026 |
| Session 1 | 11-12 May (comms check 8 May) |
| Session 2 | 14-15 May (comms check 13 May) |
| Session 3 | 19-20 May (comms check 18 May) |
| Session 4 | 27-28 May (comms check 26 May) |
| AAR due | Within 2 weeks of your session |
The official version
Full details are in MARADMIN 086/26. Direct questions to GySgt Warren at 703-692-9315 or CWO3 Hunsaker at 703-659-7578.
This is written by a reservist, for reservists. It is not an official publication of HQMC or MARFORRES. Always verify guidance with your command or unit S-1 before acting on any article or summary.