Where can I find the sniper scope overlay in the game files?

[NarrowWatch]

I want to edit it;

 

[Singa]

I think it's inside "misc.vpp_pc" and then inside "interface-backend" a file called " "ui_bms_01.tga".
It should be the parts I pointed arrows at

Spoiler: texture

Spoiler: ingame

 

[NarrowWatch]

thanks