Adding bullet tracers/puffs to guns

[Shadez12]

So Im trying to modify Project 115 - A New Threat to give the weapons Brutal Doom's bullet tracers. How would I import the tracers into the WAD file, and what would i do to the guns code to enable them? Some info on adding custom bullet puffs would be nice as well.

[Ænima]

http://zdoom.org/wiki/DECORATE

http://zdoom.org/wiki/MODELDEF