I'm just a coder who lifts and _not_ a marketing or ideation genius, but at first read that sounds like a really good idea.
Reasoning:
It _seems_ like if you make the programs legitimately useful and look reputable, not only would you get the people looking to pass a test in the actual military (which may be relatively few? I have no idea), but I bet you'd _also_ attract a ton of CrossFit or other fitness buffs who just want that "authentic" functional training feel: "Look at me according to this app used by legit military trainees I'm so fit I can be in the MilitaryBranchX!"
Reasoning:
It _seems_ like if you make the programs legitimately useful and look reputable, not only would you get the people looking to pass a test in the actual military (which may be relatively few? I have no idea), but I bet you'd _also_ attract a ton of CrossFit or other fitness buffs who just want that "authentic" functional training feel: "Look at me according to this app used by legit military trainees I'm so fit I can be in the MilitaryBranchX!"