So I normally play hardcore, but last night I dropped into Presige.  Once I realized that I didn't have to worry about killing teammates I switched to a machine gun and slaughtered the other team.  I came into the game way late but ended up finishing at the top of my team.  I am sure people were hating me but what do I care. 

I simply see no value in Core or Prestige.  There is no skill required to play that game at all.  Just grab the gun with the most ammo and let it rip.