Part of the Utility Line of Bots, the CVGH-4 CutterBot is an upgrade to earlier multi-purpose bots who tended to have... personality issues when multi-tasked or given complex directions. To simplify and focus the design teams, R&D has decided to build single-function bots for a bit, allowing for specific and simple-to-operate bots that perform a single task very well... or are supposed to. The CutterBot's sole function is to cut circular holes in things, generally walls or malfunctioning doors, to allow troubleshooter or military teams access to blockaded or sealed areas.

Part 1: Simple and Direct
The CutterBot has a tripod chassis with each wheel being capable of propulsion and rotation, meaning that the bot has enormous mobility. This is important as some cuts need to be very accurate, so the bot needs to be able to move nearly flush with a wall and center its cutting tool over a single point. The tripod design is also very stable and compact, and the rugged wheels and lift system give the bot a wide range of targeting and cutting options. The articulated arm has a wide range of joints, hinges and pistons to give it the correct angle of cut, as well as giving the bot a good reach for low or odd-angled cuts.

Part 2: Use
To get the bot to cut, the operator uses a small flashlight sized device to mark two points on a surface. The first represents the center of the cut, the second marks just outside the edge. The marks themselves are just a special paint with a very low-grade radioactive dye in it that the bot can locate using detectors in it's eye. The bot will then line up the central point (just as a compass will) and extend the outer cutting boom. Once lined up, the bot will rotate the boom to the furthest inner point (as to not tangle the fuel lines) and perform a test rotation. If this is completed without meeting resistance, the bot will fire up the cutting torch and proceed to cut. Depending on the material being cut through, this could take several minutes to several hours.

Part 3: Self-Preservation
The bot has a very limited brain, and has only 3 modes: follow, cut, and survive. If the bot senses the surface temperature around it getting too high, it will cease cutting and flee without warning. This is designed to prevent the bot's untimely demise in the face of an accidental fire. The bot is also equipped with a sensor to detect if the cutting fuel is leaking, and it will shut off the torch and torch-pilot flame and flee. It will not interact with troubleshooters beyond following the person holding the marking device and cutting things.

Part 4: Abuse

• The fuel in the tanks is (you guessed it) extraordinarily explosive. The tanks and fuel lines are durable, but were not designed to resist blaster-fire. Any firefights near the bot are near-suicide.
• The tanks are not designed to be removed in the field. They CAN be, they just aren't designed to be. There are cutoff valves at the tank, behind the bot, at the top of the bot's "shoulder" and at the base of the cutting tool. These are all one-way valves designed to prevent a fire from spreading backwards through the tube and can be disconnected in a single quick yank. The tanks themselves require a special tool to take off the side of the bot. Note that if the tanks are removed, the bot loses a lot of stability and will balance using it's arm. It won't be able to do much except move around in this state.
• Once seperated, the tanks become a clumsy sort of bomb. They'll survive dropping, kicking, and most other physical abuse for a while. If punctured, they'll vent the super-pressurized and vaporized fuel into the air, where it will condense on walls, floors, and such. It is very toxic, very explosive, and probably not good to breathe, touch, etc. Any spark, electrical current, etc is likely to set it off.
• It might be possible to remove both the tanks and torch, although some juryrigging will be involved in getting the torch working minus the robot brain. If a troubleshooter manages this... they'll have a heavy-duty cutting torch, I suppose. As a weapon, it ranks up there with a knife in terms of range and a high-end blaster-cannon in terms of damage. Why anyone would go through all that trouble...
• Getting the bot to cut a hole in someone would require such a massive exertion of energy and convoluted setup that one boggles at the thought. However, IF attacker manages to mark the victim with the marking device and IF the bot manages to test the cut without interference (say an arm in the way...) and IF the victim ignores or cannot stop the bot from firing up the torch... then treat them to a gory rendition of the death, because the victim is (literally) toast. I swear, blasters are SO much easier.
• Abusing the bot in any way will earn you a rapidly-exiting bot, which will go tattle to R&D that you were mean to it. So there you go. If the troubleshooters want to tie the bot up, they really only have to worry about it's very powerful arm. It won't use the torch on them and it will simply try to escape back to R&D.
• I'm not sure what else troubleshooters will try, but for the most part treat the bot as really stupid and single-minded. It's not designed to hold philosophical debates, nor does it care about CMTs or who is holding the marking device. It has a single job to do and it will do it without question. On that note, getting the bot to destroy itself would be fairly easy if the troubleshooters find a wall on the outside of a reactor core or something. On that note, the bot cannot cut it's own tanks because it can't reach. Sheesh.