Created a plugin with FO4Edit. The purpose of this mod is to combine the assets of the two largest weapon packs, while ensuring they are compatible, feel balanced, and show up at vendors and on enemies. In addition to create a more dynamic and realistic fallout world where your loadout matters heavily on what you can take on.

This is a work in progress mod and more planned features will be implemented over time if life allows. If you find any bugs please feel free to report them. Any feedback is appreciated and if you like the mod give it a thumbs up.. or endorsement I think what it is.

Future additions include; introduce the best features of each mod into one plugin, for example, MF weapons can "Shock" an enemy down temporarily when shot. (Implemented in 1.1.0)

Update 1.2.0
Mod is back updated to the latest of Weaponsmith Extended 2.4 v9 and Modern Firearms 2.5 1.4.

Improved leveled lists to include less powerful guns at start of game and more variety on enemies. Also updated Realistic Ballistics to the new improvements and latest New Calibers patch (download link below).

Update 1.1.0
New update is out. Took a while to finish this as I needed to modify every single weapon of WSE2 but I think you guys will like the results.
This update introduces the shock effect from Modern Firearms onto every gun in the mods and vanilla weapons. I also tested compatibility with my other mod 'Realistic Ballistics'. Works perfectly and while not required I highly recommend it as it changes the experience in fallout completely and goes well with this mod.

*Added Shock knock down effect for all weapons. Effect is based on weapon type and caliber. For example a .50BMG will likely knock an enemy down with a shot to the chest while a 9mm pistol or smg may require a good spray.
*Tweaked weapon balance
*Compatible with Realistic Ballistics New Calibers


Installation
Simply drop the esp into your Fallout 4 data folder or install via NMM.
Requires the mods listed below to function. Contains no external mod assets.

Upgrading 1.1.0 to 1.2.0.
Because of all the new weapons, I strongly recommend you uninstall both WSE2 and Modern Firearms, make a new save. Followed by installing WSE2, testing in game that it is working, then installing Modern Firearms 2.5 1.4 and this patch. (Note you will lose all your weapons by doing so but that's the best method to upgrade to the latest version of WSE2 and MF anyways.)

Load order should look like this:
Modern Firearms.esp
Weaponsmith Extended 2.esp
NewCalibers_ModernFirearms.esp
WE2MFCombine.esp
Weapons of Fate.esp (optional)
WOF_NCPatch.esp (optional)
RAO - MF Patch.esp (optional)

Requires the following mods to be installed
Weaponsmith Extended 2 (Latest 2.4v9) and all respective mods associated with its install
Modern Firearms (2.5 1.4)
New Calibers for Modern Firearms and Modern Sidearms

Recommended mods:
Weapons of Fate| Realistic Ballistics New Calibers (WOF and New Calibers Merge)
Reverb and Ambiance Overhaul | Reverb and Ambiance Overhaul - Modern Firearms Patch
Modern Firearms Weapon Sound Replacer (2.0)
War Of The Commonwealth (recommend adding weaponsmith patch)
Extended weapon mods