(following sorry)
Small and middle must always be activated. You have time to DPS or move but more important to watch around you
to see where are randoms and ennemies... And also to watch life of your team.
Watch around to survive and watch the life of your team are difficult and when you will be used to do it, you could kill easelly.
Progress step by step.
Hot is ysefull and very important 1/2 life... Why : if people in front see that someone will go down (low life), he will go on on him.
In other way, he will let down or will kitte.
b) A DPS (HOX, sin, barb, ranger...) always must assist healer (free kill for him=he's healed and he DPS...) and not let him alone.
c) Keep always a CC for youself if problems. (only for healer)
d) Where ? You always must stay behind the first waves ( Heavy, DPS) and ber carefull random of your heal.
e) If it's a big mélée, go inside group damages are divised on all memebers of group and your heal will be very good and better.