[PC Gamer]

The easiest way to change attributes is to install TF2Attributes. Once you do that you can use the plugin attached to this post for increased speed while caber is active and reduced ammo for rocketlauncher.

I would've had this done sooner but changing the rocketlauncher ammo for the Heavy proved difficult. It appears that giving weapons to other classes (such as rocketlauncher to Heavy) results in the weapon having the default weapon ammo (such as 200 ammo for minigun applied to rocketlauncher).

Anyway, enjoy the plugin. I hope you have a great Birthday!