Royal Marine Commando Training Program

The Royal Marine Commando Training Program Explained

What the Royal Marine Commando Training Program Actually Is

The Royal Marine Commando Training Program is the selection pipeline run by the Commando Training Centre Royal Marines (CTCRM) at Lympstone in Devon. It produces what's commonly called "Commandos" and is one of the most physically demanding military pre-enlistment courses in the Western world. It is not a fitness program you sign up for and complete in a few months. It is a deliberate attrition process that filters out people who cannot sustain performance under chronic sleep deprivation, caloric deficit, and psychological pressure. The core curriculum sits around eight weeks and is split into two phases: the Basic Commando Course and the Advanced Commando Course. Pass both and you earn the Green Beret. Fail at any point and you leave. There is no penalty for failing. There is also no second chance within the same intake.

Phase Breakdown

Phase 1 runs roughly six weeks and covers fieldcraft, weapons handling, jungle warfare basics, and the three core Commando Tests. Phase 2 adds amphibious warfare, mountain warfare, and advanced patrolling. Most candidates never make it to Phase 2 because Phase 1 kills more of them than anything else. The three Commando Tests are non-negotiable:

• Endurance Course: 33 miles (53 km) over rugged Devon and Cornish terrain, completed within 20 hours 30 minutes, fully loaded with 40-pound rucksack and small arms. This is the most famous test and the one people obsess over. It is not the hardest test, but it is the most brutal psychologically because it is long and repetitive.
• Lengthy Track: 8.5 miles (14 km) of fast-paced cross-country running over steep ground, carried load, completed in just under 70 minutes. This separates fit people from fit people who have trained specifically for distance running under load.
• Fear Factor: An obstacle course with 14 obstacles including a 10-meter high jump, a 25-foot rope climb, a narrow balance beam, a low wire crawl, and a 30-foot zip line. You move under timed conditions with instructors shouting. It is designed to trigger panic responses and measure whether you can think under duress.

Common Misunderstandings

Most people approaching this program misunderstand what they need to prepare for. They train for fitness. The Royal Marine Commando Training Program does not select the fittest person in the room. It selects the person who recovers fastest, eats when told to eat, walks efficiently when legs are shot, and does not break mentally when everything hurts. Here is a counter-intuitive point that nobody tells you: running speed matters less than walking efficiency under load. On the Endurance Course, candidates who treat every mile like a run burn out around mile 20. The ones who finish are the ones who can maintain a deliberate, economical pace for five hours straight with 40 pounds on their back. I watched a guy who could run a 6-minute mile walk off the course at mile 18 because his quads locked up from trying to run the whole thing. Another guy who jogged at an easy 9-minute mile pace finished comfortably. Pace discipline beats raw speed every time. Another thing people get wrong is the Fear Factor. The obstacles are not hard. The zip line is 30 feet. The high jump is 10 feet. What makes it fail-you-fast is the psychological pressure from the instructors and the time element. Candidates freeze on simple obstacles because they are tired and panicked. The workaround is not more pull-ups. It is practicing the specific obstacle sequence repeatedly until your body moves on autopilot, which removes the decision-making layer entirely.

Preparing for the Royal Marine Commando Training Program

Practical preparation involves three pillars: rucking, long slow distance running, and grip strength. Grip strength is the quiet killer. Your hands will blister, then bleed, then callus over or swell to the point where you cannot close them. Every obstacle, every march, every rucksack demands grip. I have seen candidates lose a full week of progression time because their hands were too damaged to climb properly. Use liquid chalk. Change tapes daily. Train with fat grips if you can. Rucking needs to be done with the actual pack weight, not half weight. Build up to 20-mile marches at 40 pounds minimum. Do them on uneven ground, not pavement. Pavement teaches nothing about ankle stability on rocky moorland. If you are training indoors, use a decline treadmill for downhill simulation. Knee and ankle durability matters more than you think.

Known Bottlenecks and Where People Actually Fail

The dropout rate hovers around 70 to 80 percent depending on the intake. The biggest bottleneck is not physical fitness. It is nutrition and hydration management during the course. Candidates who do not eat enough during the short windows they are allowed to eat lose weight rapidly, their performance drops, and instructors notice. Instructors notice everything. This is an unwritten but very real elimination factor. There is also the issue of foot care. I dealt with a candidate during a prep period who had ignored minor hot spots for three days before they became full blisters. By the time he came to me, he could barely walk. The workaround is to treat every hot spot immediately with a blister patch or doplix and adjust footwear before it opens. I carry a roll of leukotape and a pair of scissors in my rucksack at all times during training. Preventive care saves weeks of lost progress. Another blunt limitation: this program assumes you are already in solid general fitness before you arrive. It is not a beginner-friendly entry point. If your baseline running distance is under 20 miles per week or you cannot do 30 consecutive pull-ups, the chances of passing are very low. The program does not build fitness from zero. It strips away people who are not already fit enough to handle the stress.

What Happens After You Pass

Passing the Basic and Advanced Commando Courses means you are issued the Green Beret and assigned to a Commando Light Battery, Commando Logistic Regiment, or one of the light infantry Commando units such as 40, 42, or 45 Commando. From there, you enter the Special Forces Support Group pipeline if you want to go further. That is a separate program with its own selection process and failure rate. The Royal Marine Commando Training Program is a gate, not a finish line. It opens the door to something much harder. You should prepare accordingly and go in with your eyes open about what it actually demands.