Dear god, getting this achievement is
work. "Nightmare" is right.
Not a perfect layout, and thrown off more by all the immovable items on the map:
Spoiler
(http://i.imgur.com/90vb3NT.png)
Needed 2000. That utter monstrosity only nets 2158, so not exactly overkill.
Really, the true enemy of this achievement is LAG.
I used a custom map of my own and put powerzones all over the map, should make things easier.