So are players to message each other and say "Hey, I'm going to start a fight with you."  And everyone start tossing dice?<br/><br/>And actually, there is no initiative rolls for surprise attack rounds.  If for example, a group of orcs successfully ambushes a party, there is no initiative roll the "first round".  The orcs get their actions and the party is caught off guard and flat footed; the party can then respond.  Initiative is then rolled, and "normal" combat then proceeds.<br/><br/>