Sort of. Im 38 and have been through 8 years of CQB, 22 years of lifting, 2 years of BJJ, 6 yrears of throwing shot/disc/hammer, 5 years of BB shows, ans now doing the spartan / TM/ GR events - im still seeking the best options availabLE
Remember, I train a specific demographic. Power athletes, football, baseball, track and field, lacrosse some tennis players (yes, that is a power sport), fighters, etc, etc. What too many people do in your situation (not saying you) is make training complicated. For example, there is a local high school coach who swears that if he trains his football players with high reps, it's going to make them faster. This couldn't be further from the truth but in his mind, with no backing, it makes sense. The results were weaker athletes with diminished 40 times. Same with you, design your program with the race in mind. How often do you stop and start? What kind of obstacles in the course, how long is the course?
Off the top of my head, I would say train for power because you would be more explosive, then strength, then conditioning should be intervals (similar to a sprinter) because YOU DO stop and start. If you want to some 2-3 mile runs to condition the aerobic energy system, thats fine. But remember, you're rarely in the endurance state in an obstacle course. You're in ATP/CP and Glycolytic almost at any given time during that race.