HunterPie VS MonsterHunterRiseModding

They're extracted from the PC game files using various tools

The Rise Modding Wiki should have everything you need

It's the text file that contains descriptions of all the quests in every localization available in the game. If you know how to unpack your game file you can see it yourself. The file is called QuestData_Hall2_MR.msg.539100710, there's QuestData_Hall_MR.msg.539100710 as well but the new quests are in the Hall2 file. Here's the tutorial if you don't know how to extract the in game files, and grab the REMSG converter that converts msg files in openable txt files

Is the mystery monster EnemyIndex114? The modding wiki source says that this id belongs to Velkhana

You find the tool you need here https://github.com/mhvuze/MonsterHunterRiseModding/wiki

armor IDs general list, dunno if followers use that or their own reference table

You need to use RETool to unpack the game's .pak file, Noesis, and the REMesh plugin for Noesis. With that, you can view and export models and textures for use in things like blender. Check out the Rise Modding Wiki tool collection for all of 'em. You can also join the discord if you need help.

There's only the light tutorial on Github and that's moreso an explanation how the thing works. https://github.com/mhvuze/MonsterHunterRiseModding/wiki/Custom-Quest-Editing

Use that same repo's ID lookup table to find the Model Name (pl###) of the armor pieces you want. To continue with my example Fiorayne's armor, you'd find the Model Names in the table below.

You can see the weapon IDs here. Just check the one for the Tigrex LS and then compare it to the files in the mod's folders. See which part is the same as the ID and then take than part from another weapon's ID to replace the Tigrex one.