Same problem on Epic Games.
In my case, I had the MIDA multitool with the new skin equipped.
I was able to get into the game, but first I used DIM and changed the equipped weapon to another one.
I hope this helps someone else.
Hey there,
To help us further investigate the issue, if possible, can either or both of you, or as many players who were affected that see this, provide a copy of your DxDiags? Once you've generated it and saved it, can you select all, copy, and paste it over on [url=http://www.pastebin.com]PasteBin[/url]? You can redact any personally identifying info if needed.
Here ya go!
https://pastebin.com/jUfWaD4c
Edit: And yeah, can confirm that unequipping the MIDA Multitool with the new Marathon skin via DIM lets me avoid the crash.