Stay Low and Use Cover
If you're alive, you're earning points and moving up the leaderboard. If you're dead, you're not doing that. So you'll want to stay alive.
In Star Wars Battlefront, staying low is the name of the game. It's important when you're on foot and when you're flying in the air.
Crouch is going to be your friend. Use it to stay out of the line of fire and get behind enemy lines. It might be tempting to run into the thick of battle but staying out of sight and hidden will increase your chances of getting kills. It'll also keep you alive.
We also recommend staying low when you're flying around in the Fighter Squadron mode. This is where the power ups and hero tokens are and those are going to help you take down enemies quicker. Tons of people ignore these so stay low and take advantage.