AbirikCham
Veteran XV
might as well post it here
I think this is the first modified trail release so it should give you a base for making your own custom fx as well.
http://www.unknown-insanity.com/uploader/userfiles/abirik/abirMortarTrailv1.zip
replaces current green ribbon trail with smokey looking mortar trail
screenshot:
http://www.unknown-insanity.com/uploader/userfiles/abirik/mortar.jpg
I think this is the first modified trail release so it should give you a base for making your own custom fx as well.