Design for nightstick (g1 cyclonus' targetmaster real name terry masterson)
Headmaster's underappreciated cousin, terry got the short end of the stick genetically, and got bad eyesight, bad posture and ages really poorly but he's a complete genius when it comes to alien tech even accessing the extranet using earth tech and making a friend.
Terry masterson is the son of a previous relationship mega (of overlord fame) had with a full human before she met giga and is seen as something of a brown spot in his parent's history, inexperienced with raising children at the time, mega was unable to raise him properly even though she always wanted kids. So in addition to terry's own health issues he developed an inferiority complex and loose morals, which led him to fall in with his criminal uncle for support and cut his mother out of his life,
Under lord Zarak's roof he continued being neglected in favor of Zarak's own son henry until Henry's untimely death. Then the attention started going towards his step sister, making her sever whatever care she had for him before and leaving Terry to work on his projects alone in the dark, eventually he created a signal booster that gave him access to the greater internet-esque superstructure outside of earth that he called the extranet, using it to learn more about alien technology and communicate with other users, he eventually made a friend in the decepticon catfish cyberwarp, never one of her targets, just coincidentally frequenting the same online spaces she did outside of work the two became each other's closest friends (and maybe more) out of shared interests
With the information terry uncovered within the extranet he began developing weapons that greatly overpowered anything on earth, his most notable creation and the source of his nickname the nightstick was a gun that can snuff out light and radiation, mostly harmless for humans but deadly against transformers as their sparks are made out of light and radiation.
The nightstick can be inserted into a larger superstructure called the nebulon that not only empowers it's beam but also stores the stolen light and radiation within itself, functionally it is a crude spark extractor, and it's use in warfare for the transformers elicits the same reaction mustard gas would to a human which earns him if not direct enemies at least fear and distrust within the sixclan but unbeknownst to him Tarantulas, Ida, and Navi-ko have a certain fondness for him but because of their secretive ways he never benefits from it,
Terry has become a very depressive person, with cyberwarp and a few other online friends inadvertently being the only things keeping him in the path of vilany as his signal booster does take more energy than available on the electric grid, making him dependent on the six clan to be able to talk to his friends. If the autobots could provide him with enough power for his signal booster he'd hop ship immediately. As he doesn't really buy the six clan's mission or decepticon ideology, he just wants to survive