Use Classes to Adapt to Situations
You’ll undoubtedly find a class that you prefer playing in Battlefield 1, but it’s important to build each of your classes and use them to adapt to different situations in battle. You can set your equipment in each class, to be used for specific situations. Use an engineer as either a tank fixer or tank destroyer by equipping anti-tank grenades as mines, and switch to that class when the enemy brings in the armor. You can use the assault class when you need an extra boost to storm a tight enemy control point and take it over.
Switch to recon when you’re on defense, and find a good point to take out a few enemies. Maybe most important of all, don’t be afraid to switch to the medic and help revive your team if they’re getting decimated. Don’t let yourself get locked into playing one class, and use each to your advantage.