[Joe Brower]

That was my immediate thought as well. Got one handy? Know where to buy one? Know how to make one? Is it man-portable?

Combat robots are shielded to an extent -- would your EMP generator have sufficient power to overcome that?

An RPG would also be useful -- certainly better than any firearm of any caliber less than .50bmg. Last I checked, RPGs are kind of hard to come by, too.

Now what?

[Bidimus1]

Google HERF gun.

But my assumption was a large scale event

in that case Google Shot starfish prime