The single player is more than enough in this game. I can under stand people needing MP with Homefront COD etc as Single player can be done in one sitting this on the other hand has many hours in SP. I have not finished SP yet and I feel I have my monies worth.
I am really not bothered about the MP I have not even tried it if I want a MP FPS experence I would just play COD or battlefield as a game would have to do a lot to get up to the MP standards of those games.
Because Farcry has a huge following of fans who play it only for MP, namely because of it's highly detailed map editor. It sets it apart from CoD or any other console FPS, and FC3 had huge potential with it's new and improvement engine. (smoother movement, shooting, overall gameplay, ect.)
But they screwed it up, badly. They took away key features from previous games (vehicles, working match making for custom maps) and then left the new and improved aspects full of thousands of bugs. I can get over no vehicles and blah blah, but the game being so buggy that it's unplayable?