By default, Parcool prevents you from firing or aiming TaC weapons while wall-running—attempting to aim will cause you to fall off the wall. Furthermore, it prevents Handycam from applying its running camera effect during wall-runs. This mod makes these three mods compatible with one another.
Example video showing what wall-running looks like both with and without this mod, including the "handycam" (first-person camera) movement, as well as firing, aiming, and reloading with a TacZ weapon:
Also, in this mod's config, you can change the camera tilt angle during wallruns, since the default setting in ParCool is quite steep.
This mod is only compatible with versions prior to 4.0.0.0; after that point, the author of ParCool moved on and made many changes that made it more difficult for the mod to remain compatible with others.
I invite you to check out my other projects that improve the TACZ mod in Minecraft.

