HALO LONE WOLF (2019)

"Sent on a covert mission without the rest of her team, Spartan Linda-058's skills in infiltration and marksmanship are called upon to end the threat posed by a wanted scientist on a distant planet. With only an ONI AI at her side, Linda must fight through both the dregs of the Covenant and the hostility of a lost human settlement to stop the rogue scientist in his tracks."

"With Dr. Chen, a dangerous ex-ONI scientist, in her sights, Spartan Linda-058 and her AI companion must find a way to end the threat posed by Chen and evacuate the endangered humans in the settlement. But as the Covenant prepare to stage an assault, Linda discovers that Chen holds the key to a secret that could endanger all of humanity if it fell into the wrong hands . "

"In her final confrontation with the rogue scientist Dr. Chen, Spartan Linda-058 and her AI companion find themselves in a race against time to end the threat posed by the disenfranchised doctor and evacuate the endangered civilian settlement before Covenant forces overwhelm them all."