The winner of that 7 p.m. game will then have to beat Christopher Newport twice to claim the 2012 title.
SU had taken 2-1 and 3-2 leads earlier in the contest thanks to a pair of home runs. In the bottom of the second, Brown had a two-run blast before Joey Donofrio had a solo shot in the sixth.
For both, it was their second dinger of the tournament.
Sophomore Nick Santalucia (5-0) earned the win for the Captains, after seven inning of work giving up six hits and striking out five. Cory Nelson (4-4) picked up the loss despite holding CNU to four earned in 7 2/3 innings of work.
Nelson struck out four and allowed the four runs on 10 hits and one walk.
Designated hitter Nick Beall led a balanced offensive attack with two hits in three at-bats.