Features:
-Every weapon now has recoil in third and first person
Pistols and SMGs have the least amount of recoil while Rifles and LMGs have the most
-Each weapon's damage has been modified
-Accuracy for the cops and gangs have been reduced
-Some weapon's magazine sizes have been changed
-All ammo capacities have been reduced to a few hundred rounds depending on the weapon class so no more 9999 rounds
-Farther ranges
-Reduced hipfire/run and gun accuracy
-Reloading is slower
-Bullets must travel
-Bullet force is reduced
-Health is lowered for pedestrians (no health bar bug)
-Muzzle Flash is reduced
-Optional stick magazine for the Gusenberg Sweeper
-Proper aiming stances for hipfired weapons such as the Micro SMG
-Faster rocket speeds for rocket launchers
-More force for the Heavy Sniper
-Zoomable scope for the Marksman Rifle
-Some weapons have increased fire rates
-Increased FoV

Recommended Mods:
Crime and Police Rebalance & Enhancement (use that combatbehavior.meta)
Active Gang Mod
Ped Riot Mode
Improved GTA (this mod will mess up my mod's modified accuracy)
Enhanced Explosions
Peds Don't Ragdoll [.NET]
Credit to Drkz for the AK drum mag idea

Changes:
Version 2.9
-Musket zooming in third person increased
-Ammunition for weapons have been decreased
-Default FoV option

Version 2.8
-No drum mag for AK or HK36C option added
-Decreased recoil for Gusenberg Sweeper
-Drum mag for Special Carbine added
-Increased side recoil for Pistol .50 in first person
-Stun gun range increased
-Stun gun cooldown time decreased

Version 2.7
-Decreased recoil for Carbine Rifle and Special Carbine in third person
-Slightly increased recoil for Carbine Rifle in first person
-Heavy Shotgun now has decreased recoil and a zoom feature similar to other weapons
-Pistols now use the rifle complex reticule
-AP Pistol uses the complex SMG reticule
-Gusenberg Sweeper now uses the SMG reticule
-Homing Launcher increased recoil

Version 2.6
-Homing Launcher rocket speed increased
-Increased FoV
-Scopes for every weapon(excluding snipers) now zoom farther in first person

Version 2.5
-Marksman Rifle slightly recoil modified
-Pedhealth values changed
-Homing Launcher range increased
-Railgun cool down rate decreased

Version 2.4
-No sound bug in Modified Sounds option fixed
-No Crosshair and less muzzle flash option added
-Muzzle Flash has been tweaked to show more often but not all the time

Version 2.3
-Assault Shotgun rate of fire increased
-Marksman Rifle now has a zoomable scope
-Pump and Bullpup Shotgun rate of fire decreased
-Homing Launcher accuracy increased

Version 2.2
-Railgun magazine has been increased to 5
-LMGs have been rebalanced
-Hipfire and drive by accuracy has been rebalanced

Version 2.1
-Railgun and Homing Launcher has been modified
-Low caliber weapons can't damage armor on NPCs(shoot limbs or head to hurt them)
-Headshots against the player will nearly kill
-NPC health has been slightly reduced
-Bullets now have to travel - Thanks to Bayernsoldier(I used his weapon.meta to find out how to control bullet speed)
-Assault Rifle upward recoil slightly reduced
-Bullet force against NPCs has been reduced

Version 2.0
-Accuracy has been completely rebalanced
-Hipfire is a lot less effective
-Automatic/rapid fire is now very inaccurate, burst for better accuracy
-Zoom aim in third person and iron sight aim in first person is now useful, it's now the most accurate
-Tracers removed from all weapons except snipers
-Muzzle Flash has been reduced
-Shotguns have been rebalanced
-Assault Rifle increased damage against armored NPCs
-Assault Rifle rate of fire increased slightly
-Pistol .50 rate of fire increased
-Slight recoil changes
-Snipers have been rebalanced
-Snipers now have sway after firing a shot
-Reloading is slower
-Sounds have been reverted back to the original sounds
-Less accurate while shooting in vehicles
-Rockets are now faster

Installation: You need OpenIV
1. Run OpenIV
2. Go into editmode
3. Replace pedhealth.meta in update/update.rpf/common/data
4. Replace these 3 files in update/update.rpf/common/data/ai
-combatbehavior.meta
-weapon.meta
-weaponcomponents.meta
-weaponanimations.meta
5. DLC Example install:
Go into update/update.rpf/dlc_patch
You will then see dlc folders mpbeach, mp business etc
To install the Special Carbine changes, go into the folder mpbusiness/common/data/ai
Replace the weaponspecialcarbine.meta file
Then Add the weaponcomponents.meta file that was in the 'Special Carbine and Heavy Pistol' folder to that folder.
6. Go to each dlc folder and replace the corresponding files:
SNS Pistol: mpbeach/common/data/ai
Vintage Pistol: mphipster/common/data/ai
Heavy Shotgun: mplts/common/data/ai
Gusenberg: mpvalentines/common/data/ai
Bullpup Rifle: mpbusiness2/common/data/ai
Musket: mpindependence/common/data/ai
Heavy Pistol: mpbusiness/common/data/ai
Homing Launcher: mpchristmas2/common/data/ai
Railgun: spupgrade/common/data/ai
7. After that close archive and exit OpenIV
Thanks to dgsion for the clear instructions!