[Data Editor] Duplicated flamethrower has lost the flame...

[LhaN]

Units Tab
Add object:
* Name: Reaperine
* Based On: Reaper
* UI - Height: 0
Actors Tab
Add object:
* Name: Reaperine
* Based On: Marine
* Fields:
- Art - Model: Marine
Weapons Tab
Duplicate object: Firebat - Perdition Flamethrower
* Name: Firethrower X3
* Prefix: Reaperine -
Units Tab
* Combat - Weapons+: Change P-45 Gauss Pistol to Flamethrower X3.

I have tried various methods, in all I got the same result: Damage is OK, Jumps Cliff is OK, Look like a Marine is OK, kill by fire is OK... but I don't see any flame and I don't hear any sound. That is the short way of all methods, without detail.

Well, after various hours, I'm too close of solution. But I don't have a clue where is the option for set the model when flamethrower attack.
1.- I do a full duplicate from Flamethrower of the firebat.
2.- (Units Tab) Reaperine: Combat - Weapons+: Change P-45 Gauss Pistol to Perdition Flamethrower. This works fine!
3.- (Units Tab) Reaperine: Combat - Weapons+: Change Perdition Flamethrower to Perdition Flamethrower Copy. Don't showing flames and don't reproduce sounds.

Any ideas?

PS: Damn flames!!!