* CINCINNATI REDS -- Optioned Milt Hill, pitcher, to Nashville of the American Association. Called up Rick Wrona, catcher, from Nashville.
* NEW YORK METS -- Placed Vince Coleman, outfielder, on the 15-day disabled list, retroactive to April 10.
FOOTBALL Canadian Football League
* BRITISH COLUMBIA LIONS -- Signed Leo Brown, defensive end, and Bobby Pope, defensive back.
HOCKEY National Hockey League
* LOS ANGELES KINGS -- Signed Jim Hiller, right wing.
* MINNESOTA NORTH STARS -- Signed Trent Klatt, right wing.
* CITADEL -- Named Pat Dennis men's basketball coach.
* JOHN CARROLL -- Announced the resignation of Tim Baab, men's basketball coach.