Jayne-I428

Jayne 428, also known as Spartan 428, was one of the one-hundred Spartans in Incognito Company, who was also Jay 425's younger sister.

Jayne 428 preferred to use the standard MA5D Assault Rifle, occasionally using her M6.

Jayne wore Generation Two MJLNOIR EVA armor.

Requiem
Jayne played a part on Requiem, taking on an entire Phantom by herself, taking control of it and helping evacuate multiple Marines to the Infinity.

The Spartan's Prayer
Jayne was one of the hangar guards who managed to hold off the insurrectionist's until they retreated, after they found out that their leader was killed by Kal 338.

Installation 00
Jayne ended up leading one of the refugee camps after the Spartan's Prayer crashed on the Ark, while her brother, Jay, lead attacks on the Banished. Finally, she, Jay, and Kal attacked the Banished's jamming stations, managing to destroy one of the four jamming stations.

Personality
Jayne was often, unlike her brother, Jay, was very polite, but could become angry when certain things would happen, causing her to replicate Jay's behavior, however, she did not call herself a "badass."