I hardly use vehicles and I can get over 100 without a problem. I just play front line medic but I'm smart when I do it. My first concern is to join a squad of 3-4 people and stick together. I always go out ahead and make sure everything is clear. I have great aim so I can kill people without a problem. I also know when to run and hide so I could survive. I take advantage of being medic and almost always heal myself, I keep healing teammates around me and I revive them when all the enemies in the immediate area are dead. Then after that's all settled, I go straight for capture points. The trick is to always stay together and always be on the move to the next capture point. I only played one entire round in a vehicle and my score that round was about 70. My best round on foot was about 180. The other thing is to go on the large maps when there's only about 20 people on the server. I got 164 on Warlord as Assault the entire time. I couldn't get any bonus points for healing, reviving, resupplying, or anything, just from kills and cap points.