If you are a sniper I recommend getting a ghille suit. Next step is finding a spot on your field your comfortable at (make sure it's not too close to the enemy). Snipe and pick off guys stealthy. Everytime you hit someone find a new spot. My last and most important tip is have a good radio. Most of the time a.e.g's will beat you if you are spotted so that's why if you have a radio you can tell one of your gunners to cover you. If any of you guys have tips feel free to ask.