For PvP just suicide, for Sector, just suicide (however it inc mob hp), or watch a video of them. As for BvB you could do both, however you inc the hp of your teams base, and can only view the team your on. However there is a "incomplete" (or so called) observer mode, in BvB back from bots!! Dunno what Kenny could do, but there could be a 3rd team, meant for observers, in which case you start out dead, and can observe all the players. However you could end up being a snitch and relay the info the a team. There are some games, that save a recording (up to x games) for each fight that happens, (ex: GA2) that you can view in a list.