Tbh i don't know why the headshot multiplier was decreased on a lot of the weapons that were already a 1 hit to the head, from what i heard the deagle now has some issues as it does not 1 hit people who have bought the jugg perk.
The silenced glock changed a lot but is in an OK spot. It had a massive boost to its fire rate to compensate for the damage loss, although i feel like it needed a small increase to fire rate while keeping its original damage, as of right now it cant kill people quickly which is what it is needed to do.
The main problem with the tec was not the damage, it was always inconsistent due to recoil and lowering the damage would only make it more annoying to use. As we wanted to still have a high fire rate, short time to kill weapon as a secondary the mag was reduced to 12 so it is no longer viable to run around and kill the entire server with it. If anything i do disagree with the recoil being decreased, it really didn't need it.
The M98B needed its damage reduced due to its interaction with the deadshot perk making it one hit players with a body shot, maybe the ammo decrease was a bit much but you can always buy another one.
Mossberg was toned down as it was winning most mid range fights, the changes were not that harsh and it plays mostly the same after it got a slight re buff.
For the terror tech the mechanic change is that it will now get bonus damage for headshots, from what Bezzy told me its based on the same mechanic for other shotguns which uses the range to calculate the headshot damage.