After a rowdy Thanksgiving celebration, Yossarian is awoken by the sound of machine gun fire and freaks out because he thinks Milo is attacking the base again.
It turns out that the fire is a practical joke of some drunkards celebrating an early new year.
Yossarian works himself into a rage and grabs his .45 (a gun, in layman's terms), meaning to go out and kill the offenders for scaring him so.
Nately tries to stop him. Yossarian punches him in the nose.
Yossarian runs into Dunbar.
Dunbar wants to kill the shooters, too.
But by now the shooters have fled and Yossarian wants to check on Nately. He feels bad for hitting his friend.
When he visits Nately, he finds him with a cast-up nose and two black eyes. He is sheepish when Yossarian tries to apologize to him. In short, Nately forgives Yossarian.
We discover that Nurse Duckett has broken up with Yossarian and plans to marry a doctor.
Then the chaplain enters spouting some nonsense about Wisconsin shingles. It turns out he has lied to the doctors for the first time, telling them he had a nonexistent disease called the Wisconsin shingles.
The friends, including Nately, go out to see a Hollywood film but when they come back, the soldier in white is back.
Panic spreads throughout the whole hospital.
There is a brief respite when they recognize the soldier in white as the "same one" but panic ensues again when Dunbar suggests that there's nobody inside.
While everyone is examining the motionless bandaged soldier to determine if anyone is inside, Nurse Duckett pulls Yossarian aside. He thinks he's going to get some action.
No such luck. In a closet, she tells the amorous Yossarian that she heard some people saying they are going to "disappear" Dunbar.
Yossarian doesn't know what that means but he hurries away to warn Dunbar.