Here is a list of all of the weapons in the modpack so far with a small description of what they are/do.

Revolvers:
Light Revolver: smaller but quicker than the standard revolver
Streamline Revolver: Very quick, but deals low damage
Tactical Revolver: Very strong, high stats
Menacing Pistol: Better long range stats than others
Pistols:
Cheap Pistol: Only thing going for it is it's cost
Military Pistol: Like the regular pistol but better
Compact Pistol: Fires faster but deals less damage
Ascended Pistol: Top-tier pistol, very expensive
AP Pistol: Penetrates armour
Striker Pistol: 0.8 seconds between each shot, expensive
Auto-target Pistol: 100% accuracy from the gun
Civillan pistol: slightly worse than the stock Autopistol
SMG's:
Defense SMG: Heavy, higher damage
Assault SMG: Light, lower damage
Rebel SMG: Basically a worse machine pistol
Mag SMG: High damage SMG with tons of stopping power
Tanker Machine Pistol: Fires a burst of 5
Heavy Machine Pistol: slightly better at long ranges and +1 damage over the Machine Pistol
Autorifles:
Pathfinder Rifle: Very light, good for caravans
Elite Rifle: Mid-Endgame AR
Millita Rifle: Slow but heavy
AP Assault Rifle: Features AP properties
Burst Rifle: Fires 3 shots off very quickly
Makeshift Charge Rifle: Large downgrade than the Charge Rifle, cheaper
Quick Charge Rifle: Fires faster than the charge rifle at the cost of damage
Side-Fed Assault Rifle: Less cooldown
Sweeper Assault Rifle: Cheaper, worse variant of the Assault Rifle
Shotguns:
Explosive Shotgun: Explosive ammo
Scout Shotgun: Light, longer range
Salvo Shotgun: High damage burst, long cooldown
Buster Shotgun: Large damage, very heavy
Assault Auto-Shotgun: Longer range, higher damage
Snipers:
Areo Rifle: Very light
Hyper-Mile Rifle: Extreme ranges
Storm Rifle: High power and stopping power
Paratrooper Rifle: High firerate, light
AP Sniper Rifle: Huge AP damage
Alt Bolt Action Rifle: Slight changes, barely noticeable
Bullpup Sniper: Longer range, Less damage
MG's:
Suppressive LMG: Huge burst
Defensive LMG: Heavy, high damage
Superheavy MG: 31 damage, long cooldown, very heavy
Launcher:
Reloadable Rocket Launcher: Huge cooldown, multiple use
Single-Shot Grenade Launcher: Longer range and impact fuse that regular grenades
Thermobaric Launcher: Single shot, unpredictable blast
Bows:
Glitterworld Sporting Bow: Mid-Endgame Bow, high penetration
Hunting Bow: Slightly better than the greatbow, industrial tech