Don't take that badly. You're pretty handy with a sniper, and you can control the spread on a g36 pretty well.
But for your quickscoping, try to get to the point where you can FEEL where your crosshair is. That'll enable you to get the crosshair somewhere close to the target, enabling a far easier quickscope. Also, try not to spend 2-3 seconds on target before firing. Speed is important. But don't be careless with your shots, aim as well.
For your G36, I can't really find anything to complain about. The only thing I would say is to try not to spray so much.
Read the rules, love the rules, follow the rules, and we'll get along pretty damn well.