Efficiency rating improvement

Capping or base defense makes it climbed at a very fast rate. I get my EFF typically from resetting the green base cap as most team mates don't keep an eye on how the flank they aren't on is doing, so they don't turn around to defend the base. Instead they tend to try to yolo red cap and trying capping even though the reds had already started capping and will win.

Another way to farm it, if you are at red base, and the last enemy is across the map being hunted by greens, sit on the cap, drive out of the circle before completing the cap, then drive back on, rinse and repeat whilst the greens hunt the red. If they fail by the time the game timer has less than 2 mins then finish the cap. You gave them a chance but it isn't worth throwing the game for 1 kill.