OMAHA, Neb. — Oregon State used a five-run second inning to build a big lead, Brandon Eisert pitched a season-long 5 1/3 innings of one-hit shutout relief, and the Beavers beat Mississippi State 12-2 in the College World Series on Friday to set up a bracket final rematch. The Beavers (51-11-1) have staved off elimination three times since losing their CWS opener to North Carolina last Saturday.