This mod is a 'Rebalance' of weapons magazine sizes and magazine attachments as well as the RoF to make them more realistic. 
You may have seen my other version of the mod which will have Rebalanced damage: https://modworkshop.net/mydownloads.php?action=view_down&did=16642

This version of the mod removes all the damage modifying code for base weapons so that the weapons retain their vanilla damage. So this mod wont need to be updated as frequently, pretty much if there is an error on a weapon or a new weapon comes out.

A couple of magazine attachments that reduced damage have had their damage penalty's taken away, namely the Gecko and the Leo as their damage wouldn't be too good if I left them.

Updates: V1.4: Initial release of the vanilla damage version, as mentioned, all damage is reverted back to vanilla while keeping every other change. I have commented in the rebalance_weapons file what weapon is what so you can change stats if you want. though obviously i would say don't do that to cheat...

V1.41: Removed shield piercing capability of most weapons and only a select few have it.
Nade launchers have reduced ammo due to Homecoming's unexpected day 1 nade damage buff.
Deagle extended mags no longer reduces damage. Deagle and the 6 shooters have more ammo since vanilla damage is being used.

Update: with the new Goliath 12G shotgun, i could not find info on the fire rate of the real life variant so the fire rate wont be changed and nor will the magazine as 6 rounds is exactly what the real life variant has. So GJ overkill for making this easy on me :D. The only thing that may be changed in the future is total ammo but that would pretty much be it.

Note 2, When looking at the weapon stats sheet, you can fully disregard the 'Damage' part. Damage is the same as vanilla. the same goes for the Damage section on the attachments sheet for the Gecko and the Leo.