Fortnite Chapter 4 Season 4 has come with a lot of new contents, especially offering several never-before-seen weapons. A powerful weapon usually can help players win easily in combat, so it is important to know where can find powerful weapons. There are the locations where players can find the Exotic And Mythic Weapons as followings.

Mythic Weapons

Midas' Drum Gun, described as best possible drum gun, appears randomly in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites.

TNTina's Ka-Boom Bow, the best possible explosive bow, can be found randomly in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites.

Ocean's Bottomless Chug Jug is descried as best possible Chug Jug and will randomly appear in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites.

Kit's Shockwave Launcher randomly spawns in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites with the description of best possible shockwave launcher.

Zyg and Choppy's Ray Gun, described as best possible ray gun, can be found in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites at random.

The Foundation's MK-Seven Assault Rifle is described as best possible MK-Seven assault rifle can be possibly gotten in a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites.

Gunnar's Stinger SMG is possibly to access in  a vault at Relentless Retreat, Eclipsed Estate, or Sanguine Suites, which is described as best possible Stinger SMG.

Exotic Weapons

Heisted Breacher Shotgun can destroy builds quickly, which will appear randomly in Holo-Chests.

Heisted Accelerant Shotgun is accessible in Holo-Chests and it will Increase gun and player speed with every hit.

Heisted Run 'N' Gun SMG appearing randomly in Holo-Chests can provide the capacity of unlimited sprinting while equipped and need two keys to get it.

Shadow Tracker is sold by Peely NPC for 200 gold bars in Steamy Springs and it can ping enemies on hits.

Hope that it will be helpful when you forget where to find those weapons.