Also, nice article and info.
ACII Battle of Forli Out
NOTE:
Rumors are that The Battle of Forli contains no DLC Achievements, I cannot confirm or deny this at the point this is being published.
Also there is a Marketplace glitch where instead of paying the 320 Microsoft Points, the system prompts you to pay 99,999 MSP. No word yet if the glitch makes it impossible to buy the DLC. Restarting your Xbox may remove the hiccup.