I was reading through the forums and came across an old thread. Several people have made 1k kills per tour, but 2k is something few have ever done. I think I got 1,000 once, but 2,000? No way.
Here's the few that I know of that managed this impressive feat...
Grizz
Skyyr
Krupnski
Rusyn (Who broke the scoring system.)
Anyone else?