Hi,

I finished my first play through of this tonight and got the end credits & also unlocked the extended story mode & the 3rd starting faction, but I did not unlock the achievement for 'Dismantle the conspiracy on easy difficulty'. Beyond winning that scenario is there something that you have to do to get it to unlock? Is it bugged?

I finished the game last week using the extended playthrough on Normal difficulty and achievement did not pop on completion of the final mission but did on the extra extended mission. I think that means that they tied it to wrong mission ending and you would have to do a second run on Easy with the extended campaign option on.