I found the FOV for Red Faction via HEX Edit:

Go to Offset 00237100 -> look for 00 00 B4 42 and change it to 00 00 F0 42 (FOV 120)

So far so good but i cannot find the Aspect Ratio.

I know that Pure Faction has found it - the call it Option to fix Widescreen FOV
but its actually the Aspect Ratio since the Picture become VERT-.

So i was looking into the Pure Faction.exe (PF.exe) but unfo. the EXE is Secured and not changeable :(

So there mußt be a way to combine my FOV Solution and the Aspect Ratio Solution from Pure Faction.

So we finally can play it in UWide 21:9 - 3440 x 1440 or even in Tripple Screen.

Maybe some Devs from Pure Faction will read my Post and put the FOV Option in their next Update.

edit: nevermind i found it --> https://www.factionfiles.com/ff.php?action=viewthread&id=647

who are you