Koko comforts Valmet after she kills Chan by telling her that she was able to avenge the deaths of her Finnish Rapid Deployment Force subordinates, putting their souls at ease and giving them closure.
Koko: I believe the souls of the men you lost in that desert are now resting peacefully. You did not fail a single one of them. You have my admiration. I hope you don't mind hearing that from someone like me.