Look darling, you're clearly retarded, so, honey, I'm going to type this at you in little bits and with a lot of terms of endearment, buddy, since your syphilitic brain seems to think that's how people talk, chica.
You see, my little cauliflower, there are two things in this design that look like a legion: the gun, and optics being around the same height as the gun.
But, honey bunny, the way they accomplish that is very different. The drake holds its gun one-handed. The Legion has a hunch, placing the eye of its head at gun height. The drake, shorty, has chest optics with a head placed much more traditionally.
So here's the way it resembles a Zaku, my sweet turtledove: it has rounded feet resembling human ones instead of Titan "flats," it has a shield on one arm, its eyes and armor are painted the same color, and it has a very clearly Zaku inspired head piece, sugar.