How do I get better at Crystal Conflict?

[IDontPetLalas]

- Doing calls every 10-20 seconds on the most apropriate target, usually starting with the healer and proceed to wipe the whole party at start
- Getting 4 kills every match on average, up to 11 kills sometimes
- Spamming recuperate and guard when I'm focused
- Tell my party to push crystal when they are chasing kills in Afghanistan
- Still losing almost every match because enemy has spam limit 'much skill' break comeback

I'm still Bronze 3 after 20 wins. How people got diamond in one day? Tell me what I'm doing wrong here?

why are you still asking people to start with the healer? That's not necessarily the most dangerous opponent, for one thing.