Cupps island origionally purchased three Russian Export TR-7Ds, but several others were aquired over the years to build up their military. By the time of the United Nations' attempted to invade the island for the first time, it was estimated as much as five Russian TR-7s were on the island- all of them converted to TR-7-CIs.
Secretly modified after their aquisition, the TR-7Ds received experimental upgrades to boost their performance higher than that of the Russian TR-7A and B models. In addition to self-lubricating joints, all of the TR-7-CIs had their reactors replaced with hyper compact self-sustaining T-genorators (provided by exiled mechanical scientist Andrew Shullings from Sweeden). All of the TR-7-CIs also incoporated micronized jet engines to allow the armor limited flight capabilities and extended jump range. Speed-wise, the TR-7-CIs could clock approximately 200mph with their jets on- something the origional russian designers never intended. Reguardless, observations point to the TR-7-CI being this capable.
This particular model was the third of the origional russian exports. It was assigned to Baron Alexi Ryanov; a defector from the Russian military to Cupps island in support of their will for self-government outside of U.N. jurisdiction. Among some fine-tuning, the Baron armed his axel with a gigantic sonic axe that could cleave any United-nations use medium axel in half. Also included in the upgrades was the replacement of the left shoulder shield (the right one is standard) with a larger one that could be used for ramming attacks.
During the conflicts where this mecha was spotted many observers have questioned the Baron's choice of colors. Yellow was perhaps for the large grasslands dominating the south-western part of the island... but for months the strange patterns on the right shoulder held unknown significance (yet terrorized any United Nations pilot to go against the Baron in Axel-Axel combat). In an interview four years after the first invasion attempt, the Baron disclosed that the particular patterns there (and the small figures on the left-side shoulder plate) were drawn by his eight-year-old daughter. She has also named his mecha "Charlie" after their first dog.