Axis are perfectly capable of crushing triple zook rangers in return
Or zook paratroopers
Or even Zook REs
Or Piat Infantry sections
Or Piat commandos
Well, YES and NO, it is more complicated:
U can equip any unit with a piat or bazooka. When you give a bazooka to, say, three separate squads they cover each other and it is impossible to do such things. Circling one squad means another will shoot. They also seem to (correct me if I'm wrong here) to shoot bazookas almost on the move - you can't make them run around and not being able to aim like you can with panzershrecked panzergrens, or you can to a less extend. They ara also 4 to 6 six man squads and are much more difficult to wipe or when you do wipe say echelons they are cheaper to build back. With ostheer, on the other hand, you can equip only one type of unit with 2 panzershrecks, not one. You lose a lot of antyinf capabilities (USF and UK, me included, like to equip bazookas and piats on the units that will make them lose as little antyinfantry capabilities as possible). Basically with panzergrens shreck team you get theoretically powerful antytank squad but in reality if a player kites it they will be dead quickly. The funny thing is that it is exactly why penals got satchels imo. They, like ost, can equip ptrs on penals and other units can get them only through doctrine (cons). Of course, there are also guards and partisans with shreck. Guards have button and partisans at grenades. There are also doctine cons volley grenades. So Soviets actually are quite potent in infantry anti tank department. Unlike ost unfortunately.