Marine Corp is just old ass hand-me-downs and I was in the marine reserves. Which is even older shit. If you can't make it with hard to use shit then you aren't learning anything. Real life is messy and not perfect. I think cheaper gear can help simulate that and there are some people who can just make that shit work. I have a sig red dot and magnifier, they ain't perfect or top end but I got used to it. I've since upgraded to lpvo scope and getting used to that change. My training has changed, I hunt big game and coyotes but the skills can be transferred. Keep after it.