Well this loadout will fix all of your problems
Chassis: Monarch
Body Type: Tank
Primary Weapon: Personal preference
Secondary Weapon: Cluster Bomb (drop a cluster of bombs behind your car to disrupt persuing enemies) the main weapon you will use
Quick-Use Left: Armor Restore (Self heal)
Quick-Use Right: Mine or Hover Turret (deploy a hover turret to fire at an enemy)
What this load out does is gets rid of the need to follow people around, and you don't have to target anyone, with the enemy behind you cluster bomb auto tarets for you. While they are following you use cluster bomb until you get the kill. But having people follow does leave you vulnerable. This is where the Armor Restore comes in, need health? Self heal.
Thats pretty much the strategy. It works even better if there are 2+ people attacking each other at close range. Last game I was in I got Slaughter which is Kill 5 or more players in quick succession with this loadout. I can't prove it but give the loadout a try
Let me know what you think.