The best way of getting those achievements it's by doing some tricks (by some people consider this method illegal or cheat) all you have to do is go to your system settings on Xbox 360 Dashboard and look for the language tab, then you need to change it to the one before the last one because that language is for achievements completing, just go in Lone Wolves press X and go to the last option (try to do this before switching language otherwise you will not understand a thing) and the last option press A on it this will make your search only from people with the same language and that way you will only find people who are trying to complete achievements just like you want, the last language is for EXP Boosting but i will not recommend go there because sooner or later your going to be banned for that, but as long as you complete your achievements and get out of the language and stuff you should be fine
