Info:
Juggernauts are a relatively new unit type in the Avian Military, with only the most physically-trained birds capable of wielding such a title. The main reason for this is due to speed; obviously having a suit of armor that weighs almost half your body weight will be extremely hindering to your mobility, making you an easy target to take down with proper methods. The reason that the military only recently started funding these is because of the sheer firepower, survivability, and in a handful of rare cases, even speed, that a juggernaut was able to demonstrate.
As you'd likely expect, the aspect that defines a juggernaut is their durability, allowing them to soak up damage otherwise severely wounding or even outright lethal to a normal operator. Many juggernaut armor suits are even equipped with an exoskeleton within to provide the user with strength beyond what's normally possible. This armor, while being highly beneficial to survivability, is unsurprisingly VERY heavy, making movement sluggish and hindering sleight of hand. However, what juggernauts lose in mobility, they gain back, sometimes more than that, with lethality. Juggernauts are one of the most deadly units in the Duck Division due to their devastating firepower, wielding all kinds of weaponry to suppress enemies. Combine that with their sheer tankiness and you have an indomitable trooper.