What is betrayal in halo reach?

Answer 1

Betrayal is when the player murders their teammates during the team deathmatch. In the campaign, the player is the responsible for murder all allies in the areas. If the player accidentally murder one ally, allies will be shocked but will not shoot on the player. If the player contiuned to murder allies, all allies in the arenas will turn against on the player and shoot on the player until he/she will be dead. It's also important that betrayal is a annoying thing to do in the team deathmatch.