so i have all of the team fortress 2 files and game data. what i can't do is get it to run thru steam, it just adds the game as a shortcut. now fomr my understanding i need to have this game run thru steam so i can give it parameters to run properly, correct? because when i just launch the exe now the game is in the bottom right of the screen. so please help me figure this out, i love this game, i have to have it on my mac.