I disagree man. With armor you can compensate the lack of proper inf at with mobility(mobile warfare), with persistence on the battlefield(using the crew efficiency and onbord mechanics) and of course with resistance using the urban survival kit(also the main gun cal is a powerful asset). Also with a few well placed mines you can ripe german armor. The only thing annoying who can make your live miserable playing armor is the OP 88. It has ridiculous accuracy especially against your m8's. A supervise 88 can one shot kill an m8.... But if you have a good inf teammate with smoke, your crocs should do the trick supported by some engineers and maybe some arty.
In my opinion the armor doc is the best allied doctrine if proper supported of course and if the map allows flanking. Is pretty bad on narrow maps.
Just stop dawg...