4 years of being a Tanker was great but was enough. I dropped back down to E-3 from E-5 in the Army but had it all back shortly. Coast Guard basic was a walk in the park comparatively.
My buddy drove a tank!
He spent four years in Germany, loved it so much he married a German girl.
I think it was the beer and willing German girls that kept him there.
He told me about being on maneuvers in Germany.
A German farmer would rush out towards the tank and start pointing at a barn.
His CO would give the ok and by the time he was finished the barn would be rubble.
He figured over time half the barns in the German countryside were rebuilt by US taxpayers.
As to CG basic, after four years in the army how hard could it be?