The strategy will probably be identical to what his buddy Janet did in Waco.
Holder will pick an individual or group of gun confiscation holdouts, and start a media blitz explaining that these people have illegal weapons and are an immediate threat to their community. Then they will go in with the storm troopers and kill a group of law abiding citizens.
The press will of course go along with it, and thank Obama and Holder for murdering law abiding Americans and destroying the Bill of Rights.
“No Free man shall ever be debarred the use of arms.”
– Thomas Jefferson, Proposal Virginia Constitution, 1 T. Jefferson Papers, 334,[C.J. Boyd, Ed., 1950]