Camping, lining, and what-not are terms used by people who stick with public servers and don not play in matches. Tatics like these are what help teams control a map and score points. If you need strategy advice look me up and I'll show you how to practice learning range and areas most teams use as choke points to control movement on a map. This is just stuff I have learned by watching demos, active matches and from the members of our glorious community.