Disorderly Conduct will not hurt your immigration. However, I don't understand why your lawyer didn't want an ACD.... it would have been dismissed and sealed 6 months earlier than your Disorderly Conduct will seal.
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Disorderly conduct generally would not be considered a crime involving moral turpitude, so it should not render you inadmissible to the US. Any arrest, however, can give rise to questions at the point of entry.
Your conviction shouldn't be a problem ... EXCEPT for the fact that you're not in the US and have a 1 year probation ... did you get written permission to leave the state?
You should consult with an immigration attorney ... many use Skype ... before attempting an entry to the US.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.