Must have the following before anything happens:
•Entity
•1 map
•Pinch of experience with entity
____________________________
1.Select the Effect tree "effe" (under DECR)

2.Select "effects/objects/vehicles/warthog/bumper_destroyed".
3.Right click on the rights side of the box and select "clone chunk".
4.click on the item highlighted in Grey and after that hit "copy to clip board" highlighted red.

5.than scroll up to "effects/impact/explosion_small/plasma_grenade/detonation and click on it.
6.Hit clone chunk again, in the same spot as before (right side)

7.right click on the right side again and go to display and than select "idents"
8.find the newly acquired item you put in, and select it.

9.Right click to the right again, and select swap. as shown below this is what it looks like.

10. In the swap box click on were is says "bloc" and go to "proj".
11. Than find the plasma grenade in the scroll down in the swap box

And your done, oh and expect broken idents.