Vector-Type Zero Autonomous Tank Walker: The Takemikazuchi
System startup reads:

Good Morning, Brother.
Hello By Takemigaduchi Navi System.

Modes:

Normal Mode
Practice Mode
Stealth Mode
Setting Mode
Sound Mode
Sleep

Armaments:

Main armament (main gun): Fires for example HE (high explosive) and AP (armor piercing) shells
Chaff bullet (10)
Smoking bullet (10)
Missile-1 (10) (but the pods have 13 missiles each)
Missile-2 (10)
Machine gun (400) (mounted on the top of the turret, over the loader position)

The tank can also fire and retrieve an anchor wire as seen in episode 9. The targeting was done with the help of several laser beams (laser sights). Has also two headlights in the front.

There are five seats with projected displays for the five crew members: driver (front left), gunner (front right), commander (middle, left), loader (middle, right), communication (back center). It can be operated with fewer persons.

The engine state has three identical scales on the display, perhaps for three independent systems or engines.

During a simulation, the crew used trumpet signals to communicate with other units. The tank has an intercom system used between crew members (Filicia explains to Kanata that phones are similar to this system in episode 7), and an external audio system that can play music.

Facts

Is a relic from the past, less than 10 left in their country.
Missing parts, missing manual, mystery technology.
Main body still works.
Can messure temperature and weather e.g. (27,3 C Cloudy)
Can function as a sniper

Speculation

possibly the spider from the legend?
Cannon works as a coil gun?
The kind of energy it uses can be stored for prolonged periods without leak, or it can produce it's own energy
Has many secrets sleeping in it (maybe "culture" from the past? music, movies, newspapers and stuff in it's hard drive)

Text from: [link]

3Dmax + Vray + Photoshop