UPDATE 3
I have refined these mods and they are now available on nexus. https://www.nexusmods.com/gta5/mods/447/
If you download the old mods here on gta-5mods, don't expect to get them working again without some work. rockstar seems to have moved the explosion file stuff around and also changed the weapons.meta. Rockstar's updates are part of the reason why I stopped releasing weapon mods until now, as it seems mod breaking changes may be over.

UPDATE 2
Updated backup dlc_patch folder so you an go back online

UPDATE
-Improved launching of peds with cop pistol. Peds must also aim for a few seconds before firing
-Hydra and buzzard rapid fire rockets, and faster launch speed, range, and better explosion
-Most guns do not frighten peds if they see it or hear it, and some may even attack you
-rapid fire tank cannon with longer range
-Assault shotgun can launch vehicles without blowing them up
-New melee weapons mods- launch peds with knife, hammer, baseball bat, and golf club (baseball bat referenced from bugbutts magic bat mod)
-You no longer have to backup your files before installing. I have included the backups
-RPG has a laser trail effect- a normally unused trail effect from the game



See video





I should first mention that the police can no longer use long weapons. They either use a pistol or nightstick. You should find that this is much more fun as the nightstick cops run to you, so you can blow them away at point blank, and the pistol cops... well just read on and you'll know what the pistol does ;)


Special weapons (and most noteworthy):


Pistol (the one used by police)
A strong air blast comes from the gun and launches you into the air. All police carry this gun will launch themselves! This may be my favorite weapon. Infinite ammo, no reload.

Combat pistol
long range. Increased accurate mode zoom. Petrol pump explosive rounds. Shoots as fast as you can pull the trigger. Infinite ammo, no reload.

Heavy Pistol
Anti gravity forcefield. Makes everything in a 50 foot radius fall away from earth and lasts about 8 seconds. Infinite ammo, no reload.

Ap pistol
Shoots sticky flaming baseballs that explode on impact into a high force flame. Fling peds, card, helis, jets! Increased lock range. Infinite ammo, no reload. Increased accurate mode zoom. Also has a drum mag.

Microsmg & vintage pistol
similar to Ap pistol but projectiles explode in a high burst of steam. Also the explosion is delayed when sticking vehicles. You must wait 8 seconds or detonate using sticky bomb detonate key. Infinite ammo, no reload. Increased accurate mode zoom.

Grenade
Explosion is like the Heavy pistol's antigravity effect. Infinite ammo

Pump shotgun
Snow ball launcher! This thing is amazing. Snowballs have high velocity and force. Shoots as fast as you can pull the trigger. Increased accurate mode zoom. Infinite ammo, no reload.

Marksman Rifle
Full auto, EXTREME fire rate. no recoil, perfect accuracy, increased damage, accuracy, and projectile force.

Heavy Sniper
Full auto, Perfect accuracy, no recoil and increased projectile force. Can be used in drivebys. infinite ammo, no reload.

Fire Extinguisher
Shoots high force flame. Can be used during drivebys. Try it while parachuting.

Smoke grenade
Throwing knife that sticks and emits a deadly gas.

Stun gun
Increased range, fire rate, bullets per shot, negative projectile force on peds, positive force on vehicles. Increased accurate mode zoom.

Musket
Increased range, fire rate, bullets per shot, perfect accuracy, reduced aim recoil. Infinite ammo, no reload. Increased accurate mode zoom.

Grenade launcher
Instant hit train type explosion. High range. 3 bullets per shot with spread. Cool tracer (lazer type). Infinite ammo, no reload.

Combat MG
Extreme negative force on peds and vehicles. Perfect accuracy. high range. Can be used as a driveby weapon. Increased accurate mode zoom.

Minigun
Driveby weapon. Increased range, 3 bullets per shot, increased bullet force. Infinite ammo. Increased accurate mode zoom.

Railgun
No reload, full auto, can be used in drivebys, and larger explosion.

Special Carbine
Extreme fire rate. Infinite ammo, clip, increased range, accuracy, reduced aim recoil and damage.

Sawn off shotgun
Higher range with explosive rounds and fires as fast as you can pull the trigger. Infinite ammo, no reload.


SMG
Long range, increased damage. sniper aim and physical sniper scope. Infinite ammo, no reload.

Heavy shotgun
Extreme fire rate, increased range (basically a sniper) and zoom factor mode. Infinite ammo, no reload.

MG
Increased range, fires explosive gasoline explosive rounds. Infinite ammo, no reload.


These weapons all have similar mods (increased range, perfect accuracy, reduced aim recoil, increased bullet force, accurate mode zoom factor, bullets per shot, and no reload

-Deagle
-Assault Rifle
-Advanced Rifle
-Assault SMG
-Gusenberg
-Sniper rifle



Installation instructions:

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Here is a video tutorial for installing
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Also be sure to have the latest version of openIV installed!
http://openiv.com
Some people have also reported a problem with dragging and dropping in Open IV. If you have this problem watch this video Here

Reminder:
-You no longer have to update your files before installing. I have included the backups
Here's a quick list of files that need to be replaced

1. Replace the 4 files at this path Grand Theft Auto V\update\update.rpf\common\data\ai
-weaponanimations, weapons, loadouts, and vehiclelayouts
2. delete the dlc_patch folder located at Grand Theft Auto V\update\update.rpf and replace it the modded one

----x64 folder----(Grand Theft Auto V\update\x64\)
3. christmas2 update explosion file Grand Theft Auto V\update\x64\dlcpacks\mpchristmas2\dlc.rpf\common\data
4. christmas 2 update weapons Grand Theft Auto V\update\x64\dlcpacks\mpchristmas2\dlc.rpf\common\data\ai
5. heist update explosions.meta file Grand Theft Auto V\update\x64\dlcpacks\mpheist\dlc.rpf\common\data
go through that carefully and make sure you didnt miss anything

Also: I recommend using a trainer that has god mode and can give you all weapons (so you can use the flamethrower)