you'd be surprised when ppl are like oh yeah t hey dont have a chance so they start slacking off and the other team is victorious. u just never know what will happen.
Sometimes the scores are close before the last round so anyone can win...but when the 1st team gets a perfect score and is guaranteed to win overall, the other team wants to skip...and if it isn't, they just slack off and purposely get killed just to make the next map happen sooner.