Im sorry but if you are averaging below 450k pre patch then you where doing something way wrong. And as of now if you are avg below 250k your doing something way wrong. Change from crap hybrid and roll madness. You should dot 3 targets and focus 1 that will grant you over 300k per game. Then when you run out from a death or at begging of game Pop your consume's and your cds and get your 5k-2..5k healing. Dont worry about any other 75k-300k healing medals. From there focus on the objective and damaging people on opposing side that are also focusing on the objective.
You get medals for fast games and for doing the objectives. At the least you should be pulling around 7+ medals per game (at the least)