Never a hard requirement, still highly recommended.
Permissions and credits
Credits and distribution permission
Other user's assetsThis author has not specified whether they have used assets from other authors or not
Upload permissionYou are not allowed to upload this file to other sites under any circumstances
Modification permissionYou must get permission from me before you are allowed to modify my files to improve it
Conversion permissionYou are not allowed to convert this file to work on other games under any circumstances
Asset use permissionYou must get permission from me before you are allowed to use any of the assets in this file
Asset use permission in mods/files that are being soldYou are not allowed to use assets from this file in any mods/files that are being sold, for money, on Steam Workshop or other platforms
Asset use permission in mods/files that earn donation pointsYou are allowed to earn Donation Points for your mods if they use my assets
Console modding permissionThis mod will not be available on Bethesda.net for console users
Author notes
This author has not provided any additional notes regarding file permissions
File credits
This author has not credited anyone else in this file
Donation Points system
This mod is not opted-in to receive Donation Points
Description
Nothing hard to be understood. I just changed the ehtyeci_MPX.esp in the masters of both Armory Project 1&2 into ehtyeci_MPX.esl via FO4Edit.
Installation
Download and overwrite, and it is done.
Credits
SalientPhantom for his SIG MPX Armory Project. His awesome work really revives this good old tactical SMG mod. And Here I authorise that he is clear to intergrate this ESPs Replacers into his next update.