Survival Hunter is a mid-tier ranged DPS, performing really well in high mobility fights, a good off-spec for Marksman Hunters struggling in such fights.

Rotation for Survival Hunter Wotlk

Survival Hunter Rotation and Priorities

Hunter’s Mark (Keep debuff up) > Serpent Sting (Keep debuff up) > Explosive Shot > Black Arrow > Aimed Shot > Steady Shot > Spam Kill Shot on low Health

Tips

Get to know the fights to pop cooldowns at the best times (low movement, no crowd control, AOE, etc).

Time cooldowns so they can be used to clean thrash and be ready at boss fights.

Use Volley and Multi-Shot in AOE situations.

Use Traps or Freezing Arrow when available to proc [Lock and Load].