Spawning "on" or near someone also depends on the map... Algiers and Crossroads come to mind. You sometimes spawn right next to the enemy and its who shoot's first gets the kill most of the time...
Algiers/Crossroads have the worst spawining points of all the maps, the creator didn't put much thought into it for TDM, more for DM...
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"I got OWNED, why do I always get owned???"