Seriously, I can't believe I'm wasting time thinking about this, but here goes;
Tactically, the zombies have only one thing that makes them a threat - they're persistant. That'd also be their weakness. And I've never seen them retreat, in all the movies (really stupid). Any enemy force that congregates mindlessly, and doesn't have the sense to bug out when they're met with superior force is doomed from the start.
A. Get yourself a tank or tanks at the local Army Reserve center. Not one of those high tech monstrosities, but nice reliable old M-60's if you can find them. Then there'd be no shuch thing as being cornered by the bums. Simply roll over them; 10, 100 or 10,000, it wouldn't matter. I'd like to have a group of about 2 or 3 for mutual support.
B. Establish a zone which can be defended, and counter attack whenever they show in sufficient numbers to make it worth your while. A typical Zombie squad would consist of about 3 or 4 people; weapons including but not necessarily limit to frag grenades, shotguns, RPG's, and maybe flame throwers if you can get your hands on some. Mop-up/burial details would also be necessary; we all know how a bunch of neutralized zombies can clutter up the view.
C. Keep expanding your defensive zone, both to limit the activity of the zombies, and to keep ahead of the stink of perhaps thousands of rotting bods all over the place.
D. Have at least one good lawyer on hand, for when they start complaining that their civil rights have been violated.
E. Contemplate the morality of "killing" thousands of individuals who're already dead, look back with no regrets, start rebuilding society. Hopefully one better than the terrible mess we've created in the last few thousand years. (That's what these stories are really about, isn't it?)
$@%@
