Turn 15 notes:

And as fast as it began, the shooting stops

Segment 0:
Little Ernie draws his 2 Fatigue cards: 2 delay, -2 endurance total

Segment 5:
Gambler aim: 2 Aim Markers, +1 card 7, +2 1H skill = 5
Ike is killed by Gambler
Ike aim: 4 Aim Markers, +1 card B3, +2 1H skill = 7
Gambler takes an ARM hit: STUN 3, OTHER HAND, SERIOUS 1, OTHER ARM 3
Barkeep aim: 8 Aim Markers, +1 card 7, +0 1H skill = 9
Little Ernie is killed by Barkeep

End of turn:
Gambler delay reduced from 3 to 1. (In the interest of completness)

Final Points:
Barkeep: 8 (Kill Enemy x2, Survive, Hold Field)
Gambler: 6 (Kill Enemy, Survive, Hold Field)
Marshal: -8 (Killed)
Ike: -9 (Killed, Ally Killed)
Little Ernie: -9 (Killed, Ally Killed)