Help me with a basic strategy issue.

[Soldier]

I would attempt to locate a position, from which all of my tanks could be seen only by one of the ATG Pill Boxes. Then proceed to shoot and scoot with all of my tanks on that lone pill box. Sooner or latter (depending on the number of my light tanks) a lucky hit will kill/rout the crew of that pillbox.
Next step would be to isolate yet another of the two remaining pill boxes in same manner, if at all possible, etc.
Save my smoke for a final assault on the remaining pillbox.. ;-)