You need to have the right name for your sprite so that it has the right effect, am I correct?

I made a sprite to replace the Scope k98, but I don't know what to name it so that it works. Any help here?

I don't know the file name but when you need something like that just search DoDEC for what you're looking for, download it and find out what it's called.

http://dodec.hlgaming.com/

First of all, there is no K98 scope. Its scope k43.
And the names are:
scope_k43.spr,
scope_k43_soft.spr

Heres the two orginal, so u see what i mean. I don't know what scope_k43_soft is, but i only have scope_k43.spr in DoD 1.3.
If you have SpriteViewer u can check the difference between those.
I've added sprite view and the scope_k43 orginal sprites.