Predicted loss:

• Mouth breather teammate making random noises during agent select
• "I smurf your peak" feeding egoists
• Duelist lock at 76 seconds left on agent select
• Level 20 "I miss her" Jett on the enemy team
• "I don't play [Agent]" but already locked [Agent]

Predicted victory:

• Everyone comfortable with their agent
• Level 20 "I miss her" Jett on friendly team
• Comms available, and friendly rapport established

These are just some of the factors I look at entering a match, but mostly for comic value. The undertone of the post is that people who feel comfortable and know their agent have better games, and people who can play together have better outcomes.