It certainly took me long enough (it's my first one after all), but I'm finally done with my take on Forge's mod!
EDIT: This 1.1 version
adjusted the EP cost of one of Forge's powers, the Stunner Grenade (and my thanks go to Bingerz for pointing that out to me in the first place). It also gave me the opportunity to re-check the whole talents file and re-write a few stuff from the descriptions. Finally, one other major adjustment I've made was making it possible for the Geo-Thermal .960 to be used during flight without the strafing chaining (which really doesn't make sense in the air). It'd be amazing if Forge could glide while shooting his blaster, but we don't have that kind of animation (yet), so this is where I'm standing with this mod today.
Download link: https://www.mediafire.com/file/gvpzfek1969u11t/X-Men%2527s_Forge_mod_by_Nicaras_v1.1.zip/file
To properly run this mod, you need to copy all of its folders and paste them inside the main folder where your game is installed.
Then, you need to decompile your herostat.engb using the XMLBCUI software and edit it, replacing one of the characters from your current roster with Forge (simply copy all lines from herostat_forge.txt and paste them inside the recently decompiled herostat.xml, replacing the lines of the character that's going to leave your roster). Don't forget to get its menulocation number and to give it to Forge. Now you need to compile the herostat.xml back to the .engb extension and copy/paste it back inside its proper folder.
Optional: download the x_voice file from http://www.mediafire.com/file/tumqqfxvewyxww1/x_voice_9-20-2014.rar/file
if you wish to have Forge's callout line, among others. If you also wish to give Forge its "break" line (that's when he would say something before leaving the character selection screen and entering the stage), you have to edit this same x_voice file using the Zsmeditor software. After installing that software, use it to open the x_voice file and then add the "forge_break.wav" file (it's inside my mod's main folder) using the Files tab on the left (after you add it, it'll appear at the end of the list of voice files). Then (still at this software) hit F3 and type COMMON/MENUS/CHARACTER/BREAK_forge in order to generate its event/hash number. Copy this number and go back to the Files tab where you added Forge's wav file. Replace the event/hash number of its line with the one you've just copied. Get this event/hash number and the ID and, in the Events tab, create an event with these exact numbers. Type in "255" inside the blank data and, finally, hit the Add button. Then choose to save the file as a .zss file, actually type "x_voice.zss", and paste it inside the proper sound folder so it's updated.
Now you should be ready to fully play with it.
P.S.: These four skins have each their own body proportions (each one comes from a different game) so much that sometimes I had to make them a separate bolton, or set different values to achieve the correct bolton/effect positions and avoid clipping. Therefore I'd strongly advise against replacing any of his skins without thorough gameplay testing and editing the powerstyles file to adjustments. So far Forge doesn't have more skins than this mod is offering, but hopefully in the future we may come across new outfits for him, in which case I can totally work out on solutions to adapt the powerstyles coding.Credits and Acknowledgements:
Skin 23001 - Classic (Marvel Heroes) skin by Julio Cabral (3D model adapted from https://www.deviantart.com/xelandis
Skin 23002 - Ultimate skin from Nodoubt's XML2 PS2 pack
Skin 23003 - Modern skin by BLaw
Skin 23004 - Astonishing (X-Men: Destiny) skin ripped by ak2yny
Mannequin (Classic Skin with Geo-Thermal .960) by Julio Cabral
All HUDs: Nicaras
All icons: Nicaras (extracted images from the X-Men comics)
Loading screen: Nicaras (original art from Julie Bell)
Scouter bolton: Nicaras (3D model from http://100seedlesspenguins.deviantart.com
Containment Gun bolton: Nicaras (adapted from https://www.cgtrader.com/free-3d-models/military/gun/sci-fi-pistol-5acc4a83-a27d-4d4b-95f5-ddbf99071f94
Electric Blaster bolton: Nicaras (adapted from https://www.cgtrader.com/free-3d-models/military/gun/futuristic-blocky-gun
Geo-Thermal .960 bolton: Nicaras (adapted from https://sketchfab.com/3d-models/xen-slr-rifle-9e8f90bba20b4e3dbfe97d49bfc2b975
Rocket Pods bolton: Nicaras (adapted from https://free3d.com/pt/3d-model/jetpack-v2--639659.html
Shield bolton: Nicaras (adapted from a Turbo Squid model, I think)
Voice lines: Nicaras (extracted from the "X-Men: Destiny" game with the amazing help of ak2yny, voice acting by Phil LaMarr)
Upgradable Knockback: coding idea adapted from Outsider' upgradable Grab Smash
Holographic Transmitter script: adapted from the Infiltrate script (Outsider's Mystique)
Infiltrate powerstyle coding lines: adapted from Outsider's Mystique power
Humanoid team switching power: adapted from Outsider's Phil Coulson nonhumanoid stunning filter
THANKS A LOT, EVERYONE! MISSION ACCOMPLISHED!
Special thanks go to Outsider, BaconWizard17, UltraMegaMagnus, Julio Cabral, and ak2yny, for all of your help and instructions, and also everyone in this community who has provided us with the tools and the knowledge to make these mods possible.