A Big YES
I know this thread has been idle for a while but I feel like I want to say something.
Citizens should be allowed to own machineguns. The reason for this is because it is everyone's right to have the practical means to defend themselves, their friends and family and their country out of their own free will independent of any form of government or military leadership. This is one of the major hallmarks of a free society.
Banning machineguns and other forms of firearms is a sign of a government not trusting its own citizenry.