OK, I’ll ignore the term “treadhead”. Mainly because the first thing I learned in the tanks is, never maneuver without the infantry right there with you (Dad was infantry in WWII, I respect the infantry above all others). Tanks cannot survive without infantry with their many additional eyes & antitank weapons.
If the infantry is riding on your tank, filling in the blanks between tanks either on foot or in APCs, you’ve got a chance. The two need each other.
I don’t know whether there have been any classic combined arms shootouts between Ukrainian & Russian forces yet. Are you aware of any?
The main thing I notice consistently is checkpoints with vehicles in simple revetments and infantry in positions around the vehicle or vehicles. The infantry positions and the revetments almost always have plenty of bright white sandbags around them that don't seem to ever get dirty.
Since there don't seem to be alternate positions spread around a vehicle revetment or connecting trenches at least deep enough to crawl along without being exposed, the infantry positions are easy to identify. Probably even with Eyeball MK I in moderate moonlight once your eyes are adjusted to the night.
It's tough to judge what's the norm since some clips say they show regular Army but the troops clearly aren't trained to anywhere near the same level as units identified as regular Army in other clips.