It was your first time out into the field with RED team. You were doing good, for the most part, and had only respawned twice, which was decent for a newbie.

As you're going after a BLU Spy, you hear someone yelling, and Soldier runs past and blows up the Spy with his rocket launcher.

"YOU GOTTA BE FASTER THAN THAT, MAGGOT!" He shouts at the now dead Spy, laughing.