[James Langham]

Originally Posted by HorseSoldier

While at the sharp end, task organization would be standard, I can't see the Big Army signing off on a "make it up as you go along" approach to the MTOE.

First, even if it's a common chassis, fire control, and everything else, ultimately a different gun system means variation in parts streams on the logistics side, as well as the more obvious ammo issue. Second there will be standards for gunnery, doctrinal employment, etc., that will be better supported by consolidation on the organizational side. Think mech infantry Echo Companies and the M901.

I'd suggest the light infantry Light Tank Battalion (Armored Gun Battalion, Direct Fire Support Battalion, whatever) would be three companies of LAV75s organized into 14 vehicle companies as per standard tank companies, with a fourth company of 20 LAVs with 105. Nominally this gives a mobile anti-armor company per brigade and a two vehicle section of 105mm armed vehicles per battalion for direct fire support (though obviously the usual METT-T realities will drive who gets at any given time). In a more real-world scenario, the 105 would probably be the format of choice -- able enough anti-armor and more anti-infantry bang -- but LAV75 heavy when part of the equation is fighting off the Soviet AFV hordes makes sense.

The manual may well say one thing...

See the Osprey on the 76mm Sherman for a comparison of 2 similar tanks with different armaments. Cross attaching would also be common. I may even put a comment in that some tankers preferred the 75mm for the rate of fire and reliability of the autoloader as fighting tanks rare late war.