That's a very useful patch, arapapa.
It works in Separate Way, Mercenaries and Assignment Ada, although in the main story mode, it zooms out the camera too far when Ashley joins imo. So we can combine our patches to make this:
//Keep on always
patch=1,EE,20430F60,extended,40000000 //Internal widescreen on
patch=1,EE,002810e0,word,3c013f2b //3c013f00 //Render fix
//Use if doing Leon's campaign (disable if not doing Leon's campaign)
patch=1,EE,2031E3F4,extended,42820000 //FOV1
patch=1,EE,2031DC74,extended,42820000 //FOV2
patch=1,EE,2031C2F4,extended,42700000 //knife/grenade
patch=1,EE,2031C474,extended,42700000 //knife/grenade
//Use if not doing Leon's campaign (disable if doing Leon's campaign)
//Force zoom out
patch=1,EE,E0020001,extended,1041c0b8
patch=1,EE,20252f18,extended,3c014360
patch=1,EE,2021d2b4,extended,3c01bf80
patch=1,EE,E0020001,extended,0041c0b8
patch=1,EE,20252f18,extended,3c014328 //3c014360
patch=1,EE,2021d2b4,extended,3c01bfaa
Also, in case anyone didn't know, you can hold X and triangle at the start during boot-up to turn on progressive scan.