Hello TumX,
I personally have given up hope on support. Since this is about a dead game with no active developers and a dying playerbase, and lawyers are expensive, the chances of receiving support are incredibly low. I have modded the game myself, using cheat engine, a special tool and a .dll file coupled with a dll loader. This allows me to select any map I want, even multiplayer maps, however everything will run in Ops mode. I have noticed that if I load a map right before the crash, I will have half of my progress and level 0 everywhere (except the main menu). However this doesn't allow me to play online, so I just disabled Origin in the dev settings. It almost never crashes now.
Edit: Disabling Origin also makes the game run on offline mode. Only workaround I know.