Why does Yossarian's plane turn back. Should he feel more guilty or relieved that the plane turned bacK?

At Bologna, he pretends to have intercom troubles and orders Admiral Kid Sampson to turn the plane back. The men all return jubilantly, but when they land, all they see is Chief White Halfoat forging signatures to obtain more alcohol. Nately and Kid Sampson wander off, and Yossarian returns to his tent. I think Yossarian discovers that it really doesn't matter if the attack or not so he might as well save lives by pretending the radio doesn't work. Chief White Halfoat is more concerned with booze than the attack.