OK LISTEN UP
my personal oppinion is to play through half life the original and op. force (i loved the new weapons) and blue shift. i'd say, DO NOT (theres no perticular emphasis he, i just capitalized it to get your attention) do half life source first. its ugly. the only thing really source in the whole game is the water and the physics. which seem out of place in the amazing albiet dated game. play it the way it was roiginally meant to be played, and go back to half life source as a novelty. as far as the valve complete pack goes, i can only say, think before buying. most of my favorite mods (i.e. source forts) are available free, and the complete pack is basically for those of you who think you'll actually play counterstrike and day of defeat more that once.