It more of Ktogs mod than mine, so I think that you're better off speaking with him. The only differences are that:
a) our nades don't have a smoke trail when you toss them.
b) Our nades don't have a sound when the smoke is expensed, only when it explodes.
See for yourself:
http://www.alliedassault.com/pafiledb/p ... le&id=1209