User blog comment:Bovell/Treyarch begins staffing for next project. MW3 announcement next month./@comment-2073070-20110331064126/@comment-121.45.148.196-20110331093821

The hackers and modders were only because the modified patch files (which you use to enable hacks) have only been released for Mw2 and before. Yes, there ARE black ops hacks, but much less common due to them being private use.