Laggy Host Issues

[Carbonate]

I know this is my fault, that I disabled all ping limits.

Q: What has happened?
A: I completed a mission with a laggy host. Everybody has left the mission. After Reward and Affinity windows had dissapeared, the screen turned black.

Q: What happened next?

A: When I was pressing LMB, I could hear my weapon shooting, when I was spamming Melee, I could hear my melee weapon striking. I couldn't abort mission, because it was already completed, I couldn't quit game (ALT+F4 for the win).

Nothing has happened when I pressed "yes".