I really want to seriously improve my raw aim (crosshair placement aside) and get that snappy, Tenz-like precision. Obviously it will take a lot of work, but which methods do you guys use the most? What is the most efficient use of my time...

Since this got taken down before, here we go again... These guys came out stomping us, flying one taps galore. On attack they would all hide and then with like 30 seconds left all rush a site, seems stupid but we couldn't stop them. They go...