UNIT SXX was built specially for General Grievous, the droid has a hyper-advanced droid brain, along with auto-targeting, heat receptors, night receptors. all of these things help it to target around 100 objects and destroy them all with deadly accuracy within 2 minutes.
About this creation
head on veiw: RAWR!!
You can see here the main superblaster and shrapnel shooter. The whole claw itself rotates to drill under the ground, and small thrusters behind the claw push UNIT SXX under the ground. the opposite claw has a rapid fire cannon, and both have heat and homing missiles
This was one of the major problems; trying to getthe tail to touch the ground and have it not too long or it will overbalance.
The most secret weapon of the separatists, UNIT SXX was inspiration from Scorponok from transformers, this giant scorpion is unleashed when the CIS is not doing well in its battles against the clones. either brought in by ship, or dropped from space, UNIT SXX wreaks havoc behind enemy lines.