Mark Wahlberg proved himself a dynamo as a motormouth in The Departed, so it's disappointing to see him play the strong silent type in Shooter. Who ever thought that type was so American, anyway? From Davy Crockett to Crockett and Tubbs it's been hard to get American heroes to shut up. What was funny and charming about Gary Cooper in his early Western roles was that you could see his mind searching for more words than he knew how to pronounce and more thoughts than he could articulate. But Bob Lee Swagger is a man of no adjectives and few verbs or nouns. A former ace Marine scout-sniper turned mountain man, he gets about four decent laugh-lines. Happily, Wahlberg detonates each one. Otherwise, as they say in journalism and sports as well as politics these days, he does a good job of "holding the position."