Have you read the T+T script for the weapons? You'll know then, don't look just on the feel, but yeah, the pistols do vary slightly. Regular is the weakest actually.
Mercenary looks somewhat weak, and hobo is a downgrade from mob unless bottle is better than kukri.
What does golden LMG do?
Cholo looks like a weakling, pepperbox does very little damage and is used as a finisher.
Gangster Rank 2 isn't exactly better than Gangster Rank 1.
Also at the above, instead of support throwing ammo for themselves, try boosting the ammo limit to the guns from tier 1 script. Ask me if you need help.
You may want to decrease grenade max ammo also, should grenade launcher people get a hold on ammo piles.