Here are a number of video links I made during the development of WW:
The first initial stage which you only have to do once is point the program to your FPSC/GameGuru "Files" directory (see attached pic). Just select the "Files" directories for both and then you can select your "gunspec.txt" file under the gamecore/guns folders. WW will do the rest.
You can select either the original HUD graphic (that is shown bottom left of GameGuru) or choose an original GameGuru HUD graphic. I personally choose the FPSC one and it gets renamed and converted to a PNG equivalent.
You can edit the gunspec.txt file prior to leaving the app e.g. for Errant AI's excellent weapons you can edit the "FORWARD=" parameter to change HUD distance. The program keeps a backup copy of the original spec and you can choose to restore back should you make any mistakes or not happy with the results.
You can also select whether to include weapon/ammo pickups if they exist in the FPSC folders. Best to check if they exist first before confirming "Yes" to the prompt(s).
WeaponWelder 1.3 getting started and how to use
https://forum.game-guru.com/thread/215094?page=1#msg2545996
Weapon Welder 1.0 Parts I & II
https://forum.game-guru.com/thread/215094?page=3#msg2550495
WeaponWelder HUD select parts I & II
https://forum.game-guru.com/thread/215094?page=2#msg2546482
Weapon Welder 1.6 Video Tutorial for weapon and ammo pickups
https://forum.game-guru.com/thread/215094?page=3#msg2550303
Weapon Welder 1.6 Hands texture issue solution
https://forum.game-guru.com/thread/215094?page=3#msg2550365
Importing WW2 MAS36
https://forum.game-guru.com/thread/215094?page=4#msg2551490
Weapon Welder 1.6.2 updates and fixes (1)
https://forum.game-guru.com/thread/215094?page=4#msg2559267
Weapon Welder 1.6.2 updates and fixes (2)
https://forum.game-guru.com/thread/215094?page=4#msg2559344
Weapon Welder 1.6.3 GUI
https://forum.game-guru.com/thread/215094?page=4#msg2559918Professional Programmer: Languages- SAS (Statistical Analysis Software) , C++, C#, VB, SQL, PL-SQL, JavaScript, HTML, Three.js, Darkbasic Pro (still love this language), Purebasic, others
Hardware: Dell Precision 490; AMD Radeon HD 7570; 12GB.
FPSC to GameGuru Tools: AutoWelder/SegAutoWelder, Entity+Weapon Welder, FPEtoBAT