>>96354156
You are correct. Zentradi are all giants, ranging from 10-14 meters tall, and they most commonly fight each other so all of their military hardware is designed for that. they typically deploy not as ground troops in body armor (because, again, who cares about planets?) but in combat robots that are designed to function as space fighters as well as ground attack units.

You can see how this would be something of a problem for 40k. Their equivalent to an imperial guardsmen is what is, essentially, a warhound titan that can FLY and doubles as a space-fighter. And they throw these guys at problems in human wave tactics, because thats the standard in Zentradi vs Zentradi conflict. And as a result of usually fighting things their own size, all of their weapons are going to be overkill as far as human sized targets and vehicles are concerned.