Are you launching through the Plutonium Launcher?

I updated to r1790 and the problem still persists, here is the crash dump again (it's around 2gb big for some reason): https://drive.google.com/file/d/1yAGvkcYG5zb2BvztSu5qEUuwSow6W4Cl/view?usp=sharing

@By_silentx no. Just on Steam

Same here. The plutonium IW5 window crashes when trying to apply the settings and seemingly hijacks the mouse input. Keyboard input still works so I just alt f4'd the console to kill it. I edited the plutonium.cfg config file in C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Modern Warfare 3\players2 and set the line with r_displayRefresh to seta r_displayRefresh "144 Hz" instead, that seems to work.

@Jovinian could be your antivirus, check this https://forum.plutonium.pw/topic/8546/why-is-my-antivirus-saying-plutonium-is-a-virus-solution

try to use hamachi, create a server, copy your ip, send to your firends your ip and create a lan lobby, your friends need to go in console and write this: connect 27.94.34.678:28960 (example) (the host needs to send the hamachi ip) and the port about mw3 ps. i dont know if this works but for world at war works very good, so try it and sorry for my bad english

Install everything inside this (dxsetup.exe inside DirectX as well) https://drive.google.com/u/0/uc?id=1gG_DXaZfAUETfXaYJzCP36ImvE_bO_x9&export=download, restart your PC and try launching the game again. If it still shows the same error, screenshot your mw3 folder and game settings of the launcher.

Go into settings and change the "Toggle ADS - L2" and unbind it, and switch it to "ADS" or hold ads. Something along that line

oops didn't see that, should be good to go now

@Dss0 thank you