Fallout 4: How to Fix FOV, Mouse, Aiming and 21:9 Issues!

Have you been enjoying Fallout 4 so far this week? The game has gotten off to (mostly) positive feedback from gamers and the wider gaming industry, but as with any game launch, there have been a few issues. From the game running too fast due to high FPS, mouse acceleration issues, poor FOV and more. Fortunately, fixes are coming thick and fast courtesy of some proactive redditors.

First things first, make sure that you download the latest Nvidia drivers (sorry AMD fans, nothing yet) which were released today.

Next up, the FOV is looked on Fallout 4, but a few simple tweaks can allow you to change it.

Open both Fallout4.ini and Fallout4Prefs.ini
In the [Display] section of both files, add the following lines:
fDefaultWorldFOV=90
fDefault1stPersonFOV=90
90 is the default FOV of most FPS games, but you can change that to whatever makes you happy

What about that god awful mouse acceleration issue?

Open both Fallout4.ini and Fallout4Prefs.ini
In the [Controls] section of both files, add this line:
bMouseAcceleration=0

Although why bMouseAccelration=0 would ever be set to anything higher than zero is beyond me… silly Bethesda. Then we’ve also got the fact that vertical mouse sensitivity is set to half the horizontal, and once again, I have no flipping idea why! Here’s how to fix it.

Open Fallout4.ini
In the [Controls] section, find fMouseHeadingXScale
On the next line, make fMouseHeadingYScale 2x the amount of fMouseHeadingXScale

If you’re having trouble with 21:9, mostly from not being able to select your resolution from within the game. Follow these simple steps

Add these values to ‘Fallout4Prefs.ini’ in your documents, my games etc AND to ‘Fallout4Prefs.ini’
bTopMostWindow=1
bMaximizeWindow=1
bBorderless=1
bFull Screen=0
iSize H=1080
iSize W=2560

Now go forth and enjoy the wasteland once more!