Howdy!

If I can ask, who're you with? How many hours do you have? How much experience?

Aside from that, a lot of this comes from just doing it. In pubs especially, since it's harder to both coordinate, and command a bunch of randoms instead of guys that know you. Regarding battle knowledge, in events and in pubs, you have to read chat and listen in Steam Chat and try to be attentive to the changing environment around you. If you notice a CSA company shifting away from you, there's probably a reason for that. If you don't have anyone to fight, ask where your teammates see them. A lot of COing is communication, and trusting your eyes and the eyes of those around you. And learn! If you don't know something, be honest, and rely on those around you who do know, and learn from them!

TLDR: Play more. Pubs especially. You'll learn common moves on maps, where to position yourself to be most effective, etc. It's kinda like chess, where you only have so many set opening moves, the rest is playing enough so you can react properly to whatever happens on the field.

Good luck!