Use Elite Classes Wisely & Memorize Their Locations
Battlefield 1 currently features three Elite classes: Sentry, Tank Hunter, and the Flame Trooper. You don't select these when you spawn. Instead, you will need to find them when they popup on the map.
All three of these classes are extremely powerful and they can earn you tons of points if you use them properly.
If you're the Flame Trooper, you'll want to get in close to inflict massive amounts of casualties. A smart Tank Hunter will find a good hiding spot to pick off enemies. And the Sentry doesn't have a gas mask so you'll want to pick your spots wisely. Learn about each class so that when you do find the power-up, you'll prepared.
We highly recommend memorizing the spots where these classes spawn so when you hear the game voice tell you one is available you can find it with ease.