Stepaneks guide is bang on! But i made a little video just explaining the whole thing, and just general tips.
Remember, you can be as good or as bad as you want, if there are a decent number of people, the 3 achievements can be EASILY obtained.
Its a GROUP effort, so if you want to add just 1 point to the board you can! (Although try not to be that guy lol)
I Explain the ins and outs of the achievements for the first 1.30, so 1.35 and beyond is where you see me doing the 3 rounds and explaining each one.
Thanks for watching, hopefully this helps you guys and gals out!