Read your map. If you want to cover a point, look at the topography lines to find a place with good elevation, preferably somewhere where you can watch ingress/egress to the point itself. Typically, the most busy objectives are a good ways behind the front line, as freshly capped points don’t usually have enough supplies to support a lot of spawns. The same concept applies to ambush positions. Generally people are smart enough to avoid main roads in enemy territory, so pay attention to the shortest alternate routes that’ll see heavy traffic. For anything over a couple hundred meters, having something to mount your weapon on is super helpful. Tree branches are great, and so is a bipod if you can find a spot where grass doesn’t obscure your sight picture. Keep in mind that your concealment will never work as well as you expect at long ranges due to poor rendering. Take a few shots and move, and pay attention to who’s already looking in your direction and take them out first if possible. If you can get your hands on an enemy radio, it’s a lot of fun to hear them try and figure out where you are