Youre kidding right. Ontario is the captial of paintball in Canada. Ontario may not have a pro team like Alberta or B.C but Ontario has no shortage of players, events, teams fields and home to some of Canada's largest scenario games.
Just take a drive down the 401 starting off in london (which has 3-4 fields), perth-county (1-2), Kitchener (1-3 fields), Gulph / milton (2-3 fields), GTA has 6-10 feilds and a variety of indoor outdoor.
Tdotballers is home to alot of ballers and is Ontario paintball forum. You could also check out www.parttimekillers.org
which is mostly bush/scenario but one of ontario larger scenario / rec teams.