The planned structure for the US Cavalry post-1936. There are issues, of course: there aren't enough scout cars to go around, and there are no suitable armored cars type-classified as of Q3 1935. The motorcycle units are also a bit of an experiment, they may well end up being replaced with additional scout-car equipped units. But it's a plan, anyway.
US Cavalry - 1936 pattern
Scout Car Platoon - (34 men, 1 officer)
4 squads - 7 men, 1 M2 Scout Car
Command - 1 CO, 1 NCO, 5 men, 1 M2 Scout Car
Scout Car Company - (107 men, 5 officers)
3 scout car platoons (34 men, 1 officer)
Command (1 CO, 1 XO, 1 NCO, 4 men), 1 M2 Scout Car
Armored Car Platoon - (19 men, 1 officer)
4 vehicles - 4 men, 1 armored car
Command - 1 CO, 1 NCO, 2 men, 1 armored car
Armored Car Company - (63 men, 5 officers)
3 armored car platoons (19 men, 1 officer)
Command - (1 CO, 1 XO, 6 men), 2 armored cars
Motorcycle Platoon - (45 men, 1 officer)
4 squads - 10 men
Command - 1 CO, 1 NCO, 4 men
Motorcycle Company - (142 men, 5 officers)
3 platoons (45 men, 1 officer)
Command (1 CO, 1 XO, 1 NCO, 6 men)
Cavalry Squadron - (431 men, 24 officers)
2 Scout Car Company - (107 men, 5 officers)
Armored Car Company - (63 men, 5 officers)
Motorcycle Company - (142 men, 5 officers)
Command (1 CO, 1 XO, 2 Staff, 12 men, 4 M2 Scout Car)
Cavalry Gun Battery (68 men, 2 officers)
3 Sections (16 men, 2 3" field guns)
Command (1 CO, 1 XO, 20 men)
Cavalry Mortar Battery (64 men, 2 officers)
3 Sections (16 men, 2 3.2" mortars)
Command (1 CO, 1 XO, 12 men)
Cavalry Regiment (2172 men, 118 officers)
4 Cavalry Squadron - (431 men, 24 officers)
Cavalry Gun Battery (68 men, 2 officers)
Cavalry Mortar Battery (64 men, 2 officers)
Support Company (180 men, 6 officers)
Signals Company (88 men, 4 officers)
Command (1 CO, 1 XO, 6 staff, 48 men)