I can't find the ones where he has the meltdown in front of Anderson/Donovan, but here are some with meltdowns. http://archiveofourown.org/works/1184777 http://archiveofourown.org/works/763235 http://archiveofourown.org/works/1172508 http://archiveofourown.org/works/360456/chapters/584533 (I haven't finished reading this one yet, but I know the author, and it looks to be promising.)
Re: Autistic!Sherlock has a meltdown in front of Donovan and/or Anderson
http://archiveofourown.org/works/1184777
http://archiveofourown.org/works/763235
http://archiveofourown.org/works/1172508
http://archiveofourown.org/works/360456/chapters/584533 (I haven't finished reading this one yet, but I know the author, and it looks to be promising.)