For tanks I draw your attention to this guy:
http://en.wikipedia.org/wiki/Shawn_Nelson#Tank_rampage
`As time went on Nelson started to exhibit very strange behavior. In particular, he dug a hole 15 feet (4.6 m) deep in his backyard in an attempt to mine for gold and other minerals. In February 1995, he filed a notice informing the county of his plans to mine bedrock in his backyard, even though he was not required to because his backyard was private property.'
And: Marvin HeemeyerHeemeyer took about a year and a half to prepare for his rampage. In notes found by investigators after the incident, Heemeyer wrote: "It's interesting how I never got caught. This was a part-time project over a 1½ year time period." Heemeyer was surprised that several men who had visited the shed last autumn did not discover the modified bulldozer, "especially with the 2,000 lb (910 kg). lift fully exposed". "Somehow their vision was clouded", he wrote.
The machine used in the incident was a Komatsu D355A bulldozer fitted with makeshift armor plating covering the cabin, engine and parts of the tracks. In places, the vehicle's armor was over one foot thick, consisting of concrete sandwiched between sheets of steel to make ad-hoc composite armor. This made the machine impervious to small arms fire and resistant to explosives; three external explosions and over 200 rounds of firearm ammunition fired at the bulldozer had no effect on it. National Guard units were placed on standby orders by Governor Bill Owens for possible anti-armor support.
For visibility, the bulldozer was fitted with several video cameras linked to two monitors mounted on the vehicle's dashboard. The cameras were protected on the outside by 3-inch shields of bulletresistant plastic. Onboard fans and an air conditioner were used to keep Heemeyer cool while driving and compressed air nozzles were fitted to blow dust away from the video cameras. Food, water and life support were present in the almost airtight cabin. Heemeyer had no intention of ever leaving the cabin once he entered; the hatch was permanently sealed. Authorities speculated Heemeyer may have used a homemade crane found in his garage to lower the armor hull over the dozer and himself. "Once he tipped that lid shut, he knew he wasn't getting out", Daly said. Investigators searched the garage where they believe Heemeyer built the vehicle and found cement, armor and steel.
For armament the bulldozer was fitted with a .50 caliber semi-automatic Barrett M82 rifle pointing out to the rear, a semi-auto variant of the FN FNC in front, a .223 Ruger Mini-14 to the right, a 9mm Kel-Tec P-11 semi-auto pistol and a .357 magnum revolver with which he killed himself.
Afterwards, the modified bulldozer came to be known as "Killdozer", although only Heemeyer was killed in the incident.
I wanna have modified vehicles in LCS too!
On June 4, 2004, Heemeyer drove his armored bulldozer through the wall of his former business, the concrete plant, the Town Hall, the office of the local newspaper that editorialized against him, the home of a former judge's widow, and a hardware store owned by another man Heemeyer named in a lawsuit, as well as others. Owners of all the buildings that were damaged had some connection to Heemeyer's disputes.
Heemeyer's rampage resulted in 13 buildings destroyed, resulting in total damages estimated at more than $7 million. The bulldozer also knocked out natural gas service to City Hall and the cement plant, and damaged a truck and part of a utility service center. Despite the great damage to property, no one besides Heemeyer was killed.
According to Grand County commissioner James Newberry, Grand County emergency dispatchers used the reverse 911 emergency system to notify many residents and property owners of the rampage going on in the town.
The sheriff's department argues that the fact that no one was injured was due more to luck than intent. Heemeyer had installed two rifles in firing ports on the inside of the bulldozer, and fired 15 bullets from his rifle at power transformers and propane tanks. "Had these tanks ruptured and exploded, anyone within one-half mile of the explosion could have been endangered", the sheriff's department said; within this range were 12 police officers and residents of a senior citizens complex. The sheriff's department also asserted Heemeyer fired many bullets from his semi-automatic rifle at Cody Docheff when Docheff tried to stop the assault on his concrete batch plant by using a front-end loader. Later, Heemeyer fired on two state troopers before they had fired at him. The sheriff's department also notes that 11 of the 13 buildings Heemeyer bulldozed were occupied until moments before their destruction. At the town library, for example, a children's program was in progress when the incident began.
One officer dropped a flash-bang grenade down the bulldozer's exhaust pipe, with no immediate apparent effect. Local and state police, including a SWAT team, walked behind and beside the bulldozer occasionally firing, but the armored bulldozer was impervious to their shots. Attempts to disable the bulldozer's cameras with gunfire failed as the bullets were unable to penetrate the thick 3-inch bullet-resistant plastic. At one point during the rampage, Undersheriff Glenn Trainor managed to climb atop the bulldozer and rode the bulldozer "like a bronc-buster, trying to figure out a way to get a bullet inside the dragon". However, he was eventually forced to jump off to avoid being hit with debris. Further attempts to mount the bulldozer were hampered due to oil that Heemeyer had spread on the vehicle to hinder such attempts.
With no way to stop the bulldozer with their weapons or explosives, the Sheriff's department reportedly considered contacting the military for assistance; specifically, for either FGM-148 Javelin or AGM-114 Hellfire anti-tank missiles to be deployed to destroy the bulldozer. However, this was deemed too dangerous due the extremely high risk of collateral damage from such an action.
Two things conspired against Heemeyer as he reduced the Gambles hardware store to rubble. The radiator of the dozer had been damaged and the engine was leaking various fluids, and Gambles had a small basement. The bulldozer's engine failed and Heemeyer dropped one tread into the basement and couldn't get out. The bulldozer became stuck. About a minute later, one of the SWAT team members who had swarmed around the machine reported hearing a single gunshot from inside the sealed cab. The coroner stated that Heemeyer used his .357-caliber handgun to kill himself.
Heemeyer's body was subsequently removed by police with a crane, though it took twelve hours for them to cut through the hatch with an oxyacetylene cutting torch.
On April 19, 2005, it was announced that Heemeyer's bulldozer was being taken apart for scrap metal. It was planned that individual pieces would be dispersed to many separate scrap yards to prevent admirers of Heemeyer from taking souvenirs.
See also:
Jerusalem bulldozer attack,
Killdozer! (Book),
Killdozer! (Film),
People shot dead by cops in the U.S.