Another point about BG is that you can really pick your fights. Don't fight the fight where you know you can't win. It sounds simple, but too many players (horde pugs in AV, i am looking at your guys) are just dying mindlessly. Part of it, being Blizzard's fault for no real penalty from dying. Another part is that they are not picking the right fights.

Play your team with a stealthy Rogue mind set, you won't be dying.