So what do you think about the idea that Machinist is getting a Ammo System?

As of now it seem interesting since it focus on managing the ammo you have with the Reload skill giving you 5 Ammos to use.

Guns skills for Machinist even work better if you have Ammo loaded such as the example they gave with

Skill A (without ammo) has 50% chance to have a 2nd shot and another 50% chance for a 3rd Shot.

Skill A (with Ammo) has a 100% chance to fire 3 shots.

There is also Quick Reload skill that instantly gives 1 ammo but that is just a emergency skill.