To be a better player overall. Improve my gunskill, map knowledge, spawn knowledge, callouts/communication skills, hard point rotations and finally become a team player and be a friend but also someone my teammates can count on

I am a decent player gunskill and movement wise. I need help playing with a team to learn call outs and to get better at snd. I have a 1.18 kd in black ops Cold War but that doesn’t say much considering the skill based matchmaking. I am better with a sub but could also do good with an ar with some practice and learning how the spawns work