Threat is not based on wins. It is based on individual player score at the end of the mission.
If you are in the top 50% of players based on score your threat goes up by an amount determined by your current threat and the opponent's threat.
If you are in the bottom 50% of players based on score your threat goes down by an amount determined by your current threat and the opponent's threat.
While this is what they say is how it works and while it appears to be this way, it isn't.
Winning is the most important thing that determines whether you threat up or down. It doesn't matter if you get a negative score every time...if you win you will threat up. I created a new character on a different PC in my home to group with me and someone else. The new character sat AFK the entire mission and ended with a negative score. After winning multiple missions with the AFKer on our team their threat turned gold despite never shooting their gun or participating in the mission in anyway. Yes, I understand they can get +1 and assist on objectives if near and all, but they scored negative on all the missions.
Another goofy thing I've seen is that if you're at the top of the losing team you threat up, even if you're in the bottom 50% and if you're on the winning team and near the bottom you may threat down. I've seen low golds on my winning team turn silver when they are at the bottom while the silver on the losing team goes gold for doing the best on their team.
Winning missions by far is the biggest factor in determining your threat regardless of your "score."
Edited by Reeses, 06 August 2017 - 08:26 AM.