I am going to work on a DLC Content Chart for the X360 in the next few weeks.

The unfortunate thing is the chart(s) will be very, very meager.

Because of the way I track the sales using achievements though MGC, I am severely, and I mean severely limited with what kind of DLC I can track.

So I need a few smart X360 owners, or those in the know to tell me what kind of content packs I should be looking for.

Thus far, my list is way too meager -

The Elder Scrolls Oblivion - Shivering Isles Expansion Pack

Crackdown - Keys to the City Free Pack

Crackdown - Pay-For Expansion Pack (can't remember the name)

Any more help would be greatly appreciated. I need only titles that allow for added achievement points. I can track any of those given numbers, but very little more.

Are you including map packs? If so look at Halo 3, Stranglehold, Lost Planet, Gears of War, etc.

Do the map packs unlock trackable achievements?

mmmm no, the only other thing I can think of is the Plasmids pack for Bioshock that unlocks the Brass Balls achievement.

 EDIT: Just remembers, the Gears of War map pack unlocks achievements.

Ah there we go.

GOW Map Pack and Plasmids Pack. Any others?

The first ghost recon advanced warfighter.  An update for 5 new multiplayer achievements (75 points) was released at the same time as Ghost Recon Advanced Warfighter Chapter 2 pack however they aren't connected in any other way.

Also, I'd suggest using http://www.achieve360points.com/ if you want a comprehensive list of all the downloadable content including the games with added achievements.

umm Someone above me said the Stranglehold but didn't elaborate so that's what ima do.

It was just recently released, 250 achievements, umm 1200 Points. 5 maps?Link: http://www.xbox360fanboy.com/2008/01/05/stranglehold-map-pack-1200-ms-points-too-many/

Do not forget Marvel Ultimate Alliance. That game had some nice achievements to go with the two dlc packs for the new characters. I loved that game. Hope this helps.

I think BFMEII also added some achievments.