https://3speak.tv/watch?v=realdcghoul101/lbjwdqif
I enter the deepest areas of the Punga Cave. First I had to deal with some mod conflicts. This is the second episode of This is the first episode of In The Shadow of Swamp by Puce Moose.

Punga Script Fix: https://wiki.step-project.com/User:Kelmych/Fallout3#Point_Lookout_Reborn

HOW TO FIX: DON'T DELETE THE RECORDS! Copy the two records (xx004269 and xx00426a) from PointLookout.esm to PointLookout Reborn.esm. Drag and drop in their respective locations (USE Fo3Edit).

Quote from the STEP guide:

Notes: Point Lookout is the spookiest location in the game. This mod adds locations, content, and short quests to Point Lookout, and along with In the Shadow of the Swamp (the fourth of the optional Puce Moose quest mods) makes Point Lookout much more immersive. Fortunately, The Wasteland Patch Collection provides a patch to make these two mods compatible. One additional change is still needed for compatibility with In the Shadow of the Swamp. The patch for this is included in CPD_General_Patch from here. (Alternatively, xEdit can be used with the mod's plugin to remove the records it adds to Activator records xx004269 and xx00426a (where xx = Point Lookout DLC esm).(Thanks to user NFDan96 for this change).

Fortunately, it is still possible to add these items to your inventory.

Open the console and enter the command below. Change "xx" to the number equivalent to the mod in your load order. In my case, PLweightadjust.esp (it's the name of the .esp) is mod number 36:

player.additem xx008040 10

(adds 10 Poisonous Punga to your inventory)

player.additem xx008041 10

(adds 10 Mutated Punga to your inventory.)

That's all, folks!