Further Further Edit (May 2018)
Still blocked but apparently can be done with a huge amount of effort. See this post by Sabin VI for more information.Kane & Lynch Leaderboard UpdateFurther Edit (December 2013)
Unfortunately it seems like the blockers have control of the leaderboards again. If you're still hoping to get these I can only suggest you contact the people at the top of the boards (although previous advice against paying these people for services still stands) to see what the situation is. Alternatively you might consider messaging some of the TA members who most recently unlocked the achievements to see if they have any advice. Post Leaderboard Reset Edit
Thanks to the incredibly dedicated efforts of numerous TA members (you all know who you are
) these achievements are very much obtainable at the time of writing this edit. Over a year ago a petition to reset the leaderboards was created and submitted to Eidos, amazingly they listened and the leaderboards were eventually reset on October 1st 2013. Over the 10 days following the reset (again as of time of writing this edit) a huge community effort has been underway to help pass the achievements down through as many decent achievement-loving folk as humanly possible before blockers and anti-boosters wrestle back control of the leaderboards and return them to the huge mess they were in for the previous 5+ years.
Right now if you want the leaderboard achievements your best bet (probably only hope to be honest) would be to head on over to this forum thread (Boosting Gaming Session for Kane & Lynch: Dead Men
) and hope that the good people running the ladder are willing to accept new members. These guys are regular TA community members who have stepped up and gone to extraordinary lengths to keep this going as long as they have so give them the respect that they deserve and understand that their decisions are made with the best intentions of the boosting community and are final. If you don't like it, tough luck.Original solution, will probably become applicable again when the boosting ladder is finished
To unlock Kane as a playable character you have to reach the number 1 spot on the ranked overall leaderboard.
However the leaderboards have been completely blocked by a couple of clans who seem to be in constant competition with each other for the top spots (judging by the bio posts on some of their accounts) and have created dozens of alt accounts which are in control of the entire top of the leaderboard.
The only foreseeable way the achievement could be obtained is if the leaderboards are reset and sadly that is unlikely to happen.