Risk

The hardest pat of this achievement is finding a game.
If you end up in a lobby alone, leave and search again.

If you can find a buddy to do this with things will go a lot quicker.

For this achievement you need to score 60 or more points to get into the next league.
If you score more than 80 you get gold but I don't think that makes a difference.

As far as I can work out the best way to earn points is by eliminating as many enemies as possible. Each time you do you get 10 points, so if you wipe out one enemy in each of the 6 games you'll unlock this.

You get 20 points for winning and 5 points for coming second. You then get 5 points for each player you defeated.

You can afford to finish a game with no eliminations and still get this.

If you think you'll lose and haven't eliminated an enemy quit and search again, it won't count as one of your 6 games.

Here's what I scored to get through the league:

3rd place no eliminations = zero points
2nd place 1 eliminations = 10 points
1st place 3 eliminations = 35 points
1st place 2 eliminations = 30 points
1st place 2 eliminations = 30 points
2nd place 1 elimination = 10 points

Best tactic I found was to take Australia as quick as you can and defend it, each game I won was using this tactic. Hope that people quit, as AI takes over making it significantly easier to win.

EDIT:
If a few more people can let me know how they scored we can make this accurate.

Solution updated with correct points system, thanks for all the help TAers

This is the first achievement in the RISK multiplayer league play. You must get at least 60+ points in the Captain's League and play all 6 games to obtain this achievement and advance to the next league.

Scoring: 1st place=20 points, 2nd place=5 points, eliminating a player=5 points, for a max of 40 points with a win and complete eliminations.

If you are trying to boost this, then that will usually go much faster, IF you can find the other person in a lobby. I recommend following these tips to both find each other, and find a game in general if you have trouble with it: (Credit to Dr Latour for the boosting tips ideas!)
Trouble finding games or boosting?

Playing against human players can be boring, frustrating, and EXTREMELY BORING if you have the slow variety or the "wait until you quit" variety. I watched one game I was playing hoping to get credit for, where the remaining 3 players each built armies over 100 troops.. and the game took about 3 hours. That sealed the deal once I found this trick. I recommend only playing against real people if you don't need the win and want to just have fun--I chatted with some people for 2 games in a row, had a lot of fun, won one of the games. There are some fun people playing this game!
If you must play against humans, here are some tips:
Playing against AI players is really quite easy if you have some basic strategies on how to win. Figure on each game taking at least 1 hour though, with some much less, some more.
To win against the AI I've included a number of tips from my experience:


Fun website with statistics about the dice that I found useful!
http://www.datagenetics.com/blog/november22011/
Basically, defender has the advantage up to 5 vs 5, then attacker has the advantage with 6 vs. 6 and up. And other stats.