This image is just a concept/fan-art for a new hound walker that named "suzzy walker.
If this was added in pb2/pb2.5 (i know it cant) you will control it with:
d = go right
a = go left
w = straight (or be hight a bit)
s = crouch ( s + e to open windows and jump off )
space = launch rockets
left click = turret
The image is in this link --> http://prntscr.com/l1vlla