If you are going to try hard mode Atheon with your Hunter I strongly and highly recommended you use the 4 shots helmet. Plus the guns I recommend are VoC or Atheon's epilogue/ Praedyths Revenge for sniper/ for heavy I recommend either Gjallarhorn or Corrective measure. Depends on your luck, if you always get heavy ammo you can run Gjallarhorn, if not corrective measure. There is no room for mistake and taking care of ads has to be fast. Also the last 2 oracles on the Venus/Future/Right side can be killed with splash from the relic. The strategy you are using wouldn't work on hard mode because of the extra health oracles have so you will wind up getting marked. I also recommend you run the grenade that seeks and use the double throwing knife perk. A grenade and 2 throwing knifes should kill the oracle. That's if you are in a tight spot and don't think you can make it. Other than that great job on the Templar never thought of doing that strategy, I learned something new today.