How do I change 3rd person player sprites in my WAD/in GZDoom?

[Nikole Pain]

Hello, I copied all the (3rd person) Doomguy player sprites from DOOM2.WAD (the ones named Playa) into my Doom WAD and replaced them with policeman sprites, but when I launch the WAD in GZDoom and click V (go to 3rd person mode) the Doomguy sprites are still the same/not replaced. Does anyone know what I'm doing wrong? Maybe something to do with the classes thing that I don't understand lol. Does anyone know how to make it so that the WAD makes it so that your player sprites are always how I want them to be? Thank you for any replies :)

[rouge_means_red]

I think your sprites have to be within S_START and S_END markers

[Nikole Pain]

It worked perfectly, thank you so much!!! :)