Tulsi may have served in the military. But I doubt she is a weapons expert. Her unit is a rear-echelon unit. It is not a front line unit.
She DID serve in the Hawaii Army National Guard, I remember her as an E4 (Specialist) back when she was assigned to a Medical unit in Kalaeloa (former Barbers Point NAS). As the years progressed and the deployments came around I seen her in passing and noticed she was a 2nd LT (Butter bar). To call one's self a weapons expert with ONLY qualifying on the range ONCE-a-Year would hardly be an accurate statement to make in her case. It would be a stretch to say that being "WELL-TRAINED" in your assigned weapon(s) (M9/17 9mm pistol & M4 rifle) would be accurate. And yes, she's served in units in the rear....which by definition would only make her qualify once-a-year just to stay current on the assigned taskings per individual soldier.
Early in my career (90's), I was assigned to a Cavalry unit and we would train on live fire ranges more times than I can remember, crew serve weapons (M60 MG, M2 .50cal MG, mounted & dismounted) along with the individual M4/16 rifle w/M203. Training with weapons/firearms is a "perishable" skill, many NEW recruits have a hard time qualifying nonetheless understanding the fundamentals of breathing control, trigger squeeze/reset, sight picture and recoil management.
Units now depend SOLELY on technology as training aids which makes soldiers LAZY rather than the "old skool" methods of having a senior NCO teaching classes in a field environment AWAY from the Garrison. Oh well, it's NOT what it used to be.....