Arachni is yet another MOC that is nothing more but a spontanic design. Based on leftover from badly-done Defiler, from which I liked only the legs. All the rest was just experimenting - maybe use insectoids' eye as a cockpit canopy? Or take Dreadnought's machine gun... why not? :D
The Arachni walker looks like it was heavily armoured, and indeed it is so. With thick armor, speed, agility, and ability to get where common tracked or wheeled vehicles can't, Arachni is valuable unit.
Wow! I really like how you blended some different themes. The legs are really nice, and it's awesome to so someone come up with a use for the insectoid bubble eye piece. My only complaint is that the machine gun is a little big.