I can not emphasize this point enough if your cleric dies

Saving Lives: Use skills such as spiracle shock shot and freezing arrow to save the lives of others, especially your clerics, I can not emphasize this Bounty Bay Online Gold point enough if your cleric dies, your whole party is screwed.

Also, if you had pulled a mob back and your party is still on a mob, stand near your tanker and continue hitting it first if you can't spiracle shock or freeze it, you do have a decent amount of hp, and your cleric should be aware enough to heal you without gaining aggro.

Equipments: Rk1 Gear - Well, basically not much of a choice here, however I would advise you not to use the rk1 light bow, because your passives doesn't stack with it, use a 1h dagger/sword with shield or a 2h axe. Don't worry; you won't be staying much in this level range for long.

Rk2 Gear - Wrinkle Bow + Hunter's suit and 2x Dex rings for the added hp/accuracy and dmg. Why a hunter suit when it has lesser defence then a warrior suits some ask?

Well because in my opinion, you're not going to tank much, and therefore with the hunter suit you will have more benefits, most notably the accuracy passive.