![shaftwhores only by [EXE]dann](/files/avatars/2007/51852-shaftwhore.gif "shaftwhores only by [EXE]dann"){kind=small}
Harvester is a team-based game mode that hails from the original Team Arena release. Fragging the other team will cause a colored skull to emit from an obelisk located in the middle of the arena. Grabbing the enemy's skull, and running them to the enemy's base will score you a point for each skull captured. Grabbing your teammate's skulls will deny them from the enemy. The first team to reach 15 skulls captured is the winner!
The Sampler servers are available in limited capacity, so look for matches named "Harvester Sampler" and enjoy!
Locations:
GBR, Maidenhead
DE, Frankfurt
ARG, Buenos Aires
TX, Dallas
AU, Sydney 
RU, Moscow
1620 Hits
As for Harvester, it's a bit too complex and random, here's s quick run, I haven't gotten around to spec long enough and get more basic rules (deny enemy skull, defend capture point etc)