User blog comment:Bioniclepluslotr/Black Ops WWII weapons in Multiplayer/@comment-28584497-20110115162645/@comment-1518024-20110115163051

Yes, the MP44 was the name given it by it's designers to hide it's true nature. With the "MP" it was presumed that it was Machinen Pistole (Or something similar). This is because at first Hitler opposed the idea, so it was designed under the MP name. Later when he saw it's potential he renamed it SturmGeweher44.