Pull rules
Pull from angles where the pet can reach without taking the scenic route.
Before sending the pet, know where its path can pull unwanted mobs or even a boss.
Trap before the mess.
Do not start a second mob while the first still has runner potential.
Cooldown ladder
Freezing Trap first if you still own the pace of the fight.
Feign Death when the route is already lost.
Wing Clip and 
Concussive Shot protect distance.Dismiss Pet if the terrain reset is about to turn it into a hostage.
Gear discipline
Ranged weapon upgrades stay at the top of the list.
Stamina still matters, even on the easy class.
Ammo, pet food, and free bag space are real performance stats.
What makes this class die anyway
Pet pathing taking one terrible corner.
Speed turning into laziness.
Starting pulls with nowhere clean to back up.
Dungeon red flags
Pet taunt discipline ignored by the party.
Hallways too tight for sloppy trap setup.
Groups loving your damage enough to forget pacing.
When to bail immediately
The pet takes a tour through another room.
Trap misses and the available space disappears with it.
A runner is heading toward packs nobody has checked.
The group starts treating you like an emergency tank.
Keep in mind
Most Hunter deaths are management failures wearing damage numbers as a disguise.