Destiny 2: Lost Sector - K1 Communion (Legend Difficulty-Only; My Slow & Steady Strategy)

• Location: Moon 
• Lost Sector: K1 Communion 
• Difficulty: Legend
• Champions: Barrier & Overload
• Barrier Champion: Will and can Heal (completely) when it put up it barrier. It will put up a barrier every time it "HP" hit 2/3, 1/3, and even 1~3 percents and start healing to 100% if not stun. Required an "anti-barrier" mod to both break the barrier and "stun" the Champion. This also stop it from healing. Will not heal during the non-barrier phase. This is one of the two Champions type among the three Champions type that can heal if left alone.
• Overload Champion: Often on fast and nimble enemies type. It will immediately start healing when no more incoming attack/or been stun. Required an "anti-overload" mod if you want to stun it. Do not need the mod if you have enough firepower to kill it in one go. This is one of the two Champions type among the three Champions type that can heal if left alone.
   
• Burn: Solar
• Shield: Solar & Void  

My Average Time: 8~11 minutes

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Personal Notes/Comments/Opinions:

• Advantage Class/Character (Killing the Boss): Titan  
• Troublesome Enemies and/or Areas to watch out for (according to my opinion/play style/load-out): The initial "ad" in "The Boss Room" before the boss spawn.
  

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Advise Weapon Load-out: 

• Kinetic: An Anti-Champion mod weapon of the season
  
• Special: The other Anti-Champion mod weapon of the season (preferable a solar type)
  
• Heavy: Please refer to the Heavy Weapon test only for references. 
  

Notes: Depend on season anti-champion weapon mod, you (the player) may or may not have certain weapon.

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Sub-Class to Uses:

• All Class: Solar
  

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Room 1

Room 1:

• Ad+Barrier Champion

Try to kill all the "ad" as much as you can before the Barrier Champion arrive. Even if you have the opportunity to stun the Champion, kill off all "ad" first before you kill the Champion. The Picture/Screenshot is where I uses to fight from as defense position so I don't get shot/hit by the enemies too much.

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Hallway 1 toward Room 2:

• Ad

Kill the "ad" as usual as you process to the next room. Before you enter Room 2 at the doorway kill the "ad" from above at the doorway that in Room 2. 

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Room 2

Room 2:

• Ad, Void Shield, and Barrier Champion 

Only after you jump down to Room 2 do the enemies start spawning. Fight from the defense position as the picture and you might get shot less. You can kill the void shielded enemy by shooting it normally or grenade it before shooting it or go close and kill it; the choices are your. The champion will spawn in the back after you killed enough enemies in the room but that not important. What important is that hopeful you clear all the "ad" on the ground minus the one you can't kill yet near the champion. Once you ready to kill the champion, head toward the left side and up those stair. Make sure you clear all the "ad" up here. Now go kill the champion and then any left over "ad".

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Hallway 2

Hallway 2 toward Boss Room:

• Ad+Overload Champion

Kill the invisible "ad" from the doorway (refer to picture). After you do that the Champion and "ad" will come in. Still at the doorway; shoot and kill "ad" as quickly as possible before focusing on the  Champion. If you want to get in closer to fight the Champion, go to the left side where the Champion is not at. After you kill the Champion, just keep moving down the hallway and kill all the "ad" that spawn along the way. 

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Boss Room: 

• Before the Boss Spawn: Ad, Overload Champion, and Solar Shield
• After the Boss Spawn: "Boss", Ad, Barrier Champion, and others

The area before you enter the boss room, you got a left side or the right side entrance. Go toward the right side as that where the Champion is at. Kill the "ad" or the "Champion" depend on the situation at entrance-way. Only after you do that when entering the Boss room, you will be fire upon by many "ad". Kill all the "ad" before the Boss spawn because when the Boss spawn along with others. The Boss will move around the room in circle when damage enough however the enemies that spawn along with the Boss will stay generally in the area where they spawn. So just kill the Boss.

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Defeating the Boss:

• Titan: Super (Hammer of Sol) [100% of it HP]
  
• Warlock: Super (Daybreak) [60%; 2/3 of it HP] Plus 4 direct shot of Gjallarhorn w/Catalysts
  
• Hunter: Super (Golden Gun-Deadshot) [1/3 of it HP] Plus 4 direct shot of Gjallarhorn w/Catalysts

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Heavy Weapon Tests:

Gjallarhorn w/Catalysts:

• Barrier Champion: When stun (With Anti-Cham Weapon/mod), 1 shot
  
• Overload Champion: When stun (With Anti-Cham Weapon/mod), 1 shot
  

Roar Of The Bear (Tracking Module+Incandescent):

• Barrier Champion: When stun (With Anti-Cham Weapon/mod), 1 shot and/or plus a finisher 
  

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Heavy Weapon Tests Only (On Boss):

Gjallarhorn w/Catalysts: 

• [Fail]: 5 Shot
• Reason (Why Fail): Ran out of ammo, some were not direct shot, some were miss shot, and the catalyst perk miss or didn't even hit the boss.
  

Roar Of The Bear (Tracking Module+Incandescent): 

• [Succeed]: 5 (direct) Shot

Roar Of The Bear (Tracking Module+Cluster Bomb): 

• [Fail]: 4 (direct) Shot
  
• Reason (Why Fail): Ran out of ammo