How did Jefferson take initiative in the war?

The major test of Jeff's character comes when General Blunt sends him over to the rebel side to acquire information as a Union scout. Jeff's compassion for the enemy grows as he spends more time with the Confederate soldiers under Stand Waitie's command. However, once Jeff learns about an officer on the Union side peddling the repeating rifles to the rebels, he realizes he must stay to find out the name of the officer and return to Fort Gibson to complete the job he is hired to do.