What constitutes being "old school" in the military?

Old school is focus on the mission, not superfluous crap, especially when the SHTF!

Yellow PT uniform? How about OD fatigues and black boot as a PT uniform.

Banana suit for pt
Green eggs out of marmite container
Full auto M16
CQ banging on door at 0300 yelling alert
CQ doing same but company piss test
Pt hungover
We said F@#k alot

For me, if khakis were still an authorized uniform (my first 6 months of active duty).

If, you know what a John Wayne bar or a sliver killer is you are old school!
If, your rations had 4 cigarettes in them you are old school!
If, you used a diaper and know what's it's for you are old school!
If, you know how to spin brass and know what brasso is you are old school!
And finally if, a crew cut was the only option you had at the Barber shop you are old school.

I did most of that and also made the grass grow lol

Filling out a paper travel claim

Donald J. De Paola
Nov. '61 - '63
Ft. Dix, N.J. - Basic
Ft. Sill. OK. - A.I.T. - Artillery
Ft. Benning, GA - Airborne Training Jump School
Ft. Campbell, KY - 101st. Abn. Div., 501st. Sig. Corp.
No yellow PT training shorties (!!) but all the rest including:

M79 grenade launcher; M-1911 .45 Automatic Pistol; Grenade launcher and M-16 (Trained on M-1's and M-1 Carbines as a cadet in La Salle Military Academy, LI, NY. '56 - '60)

No gamma goat but the old mechanical mule > U.S. Military M274 Truck, Platform, Utility, 1/2 Ton, 4X4 or "Carrier, Light Weapons, Infantry, 1/2 ton, 4x4" aka "Mule," "Military Mule," or "Mechanical Mule" is a 4-wheel drive, gasoline-powered truck/tractor type vehicle that can carry up to a 1/2 ton off-road. It was introduced in 1956 and used until the 1980s.

You know, just "old school" stuff.

Nov. '61 - '63
Ft. Dix, N.J. - Basic
Ft. Sill. OK. - A.I.T. - Artillery
Ft. Benning, GA - Airborne Training Jump School
Ft. Campbell, KY - 101st. Abn. Div., 501st. Sig. Corp.
No yellow PT training shorties!!
M79 grenade launcher; M-1911 .45 Automatic Pistol; Grenade launcher and M-16 (Trained on M-1's and M-1 Carbines as a cadet in La Salle Military Academy, LI, NY. '56 - '60)

No gamma goat but the old mechanical mule > U.S. Military M274 Truck, Platform, Utility, 1/2 Ton, 4X4 or "Carrier, Light Weapons, Infantry, 1/2 ton, 4x4" aka "Mule," "Military Mule," or "Mechanical Mule" is a 4-wheel drive, gasoline-powered truck/tractor type vehicle that can carry up to a 1/2 ton off-road. It was introduced in 1956 and used until the 1980s.

You know, just "old school" stuff.

In my entire military life training I was instructed that the old school is the base of the core of values, vision, mission of the total force concept. That future generations of military leaders will build base on these fundament left by those great heroes from the pass warriors. As a veteran I thank God for those warriors of the pass that left a stable Arm Forces for future generations to come. God bless those that are still alive and those that pass away their legacy leaves in the United States Military Force. So God Help Us.