Though mission oriented and competitive, several Spartan-II trainers suspected Kelly-087 harbored no overt loyalty to the UNSC, and was only prevented from leaving the program due to strong bonds with her companions in Blue Team,
Even among the super-human SPARTAN-II personnel, Kelly-087 was notable for having the quickest of reflexes, and an almost preternatural ability to synchronize with Mjolnir mobility systems. Even without power armor, Kelly-087 is capable of running at speeds in excess of 50kph for extended periods. This impressive ability earned Kelly-087 the nickname of "Rabbit" among her fellow Spartans.
As of August 2558, Kelly-087 has completed 201 military operations [124 full campaigns]; only a handful of surviving Spartan-II operatives have more experience. Kelly-087 claims to be ignorant of awards she is entitled to, and has shown little interest in the biographies and records of non-Spartans.