I've played competitive judo and been an infantry officer which had two different training regimes.
What's funny, is that when I was doing judo 5 days a week and lifting heavy too, I think I humped the hills much better than when I was doing PT and running lots of miles per day.
Seems to me that the repetitive training for 5 minute matches led to explosive lung capacity (basically tabata) and tied with the lifting (squats and sled) to stabilize the legs, that was the best combo. For judo, I found alternating rounds worked real well in the dojo, coupled with wind sprints up the stadium ramps or stairs.
Massive road running capability without load was not the ideal training for chasing elk in the hills. Especially, if you are humping out loads and don't want to blow a knee. But I amble too. Never in a hurry unless needed.
