Mark your targets, stay with squad, think strategy. Focus on winning matches, this is good for winning points and will help you on the leaderboards. Dont go running off at a tank just because you have some RPG. Learn how to defend in Rush and CQ. Avoid the bottlenecking thats been so prevalent on these maps. There's always another rout. Let teammates get into your gawdamn vehicle before you take off. Dominate the objectives, not just your K/Dr.