Former Hawk Eric Soar had the SO winner for the Mils against his former team while Peter Michailidies, Ethan Kopyczyn and Clayton Eisler scored for Melville in regulation.
Churchbridge's Colby Entz made 44 saves for the win in the Mils net.
The next game for the Moneymen will be on Friday night for their season opener when they visit the Estevan Bruins at 7:30 from Affinity Place.
Meanwhile in Yorkton,
The Yorkton Terriers got out to an early 4-0 deficit and nearly completed the comeback but fell on home ice 6-5 to the MJHL's Dauphin Kings at the Farrell Agencies Arena.
Charlie Risk, Karstin McDonald, Cody Bruchkowski, Will Brochu and Jordan Hudson had the goals for the Terriers.
Jordan Schmuland and Marek Pipes split the duties in the Terriers net. Schmuland gave up 4 goals on 18 shots while Pipes made 15 saves in 17 games.
The Terriers wrap up their preseason today (Sun) when they play in Saskatoon against the Battlefords North Stars at 5PM