I mentioned before that I chose a healing class because I was sick of idiots in scenarios playing a healing class and not healing at all.  Well, I just entered into a tier 3 zone last night at rank 19 and immediately queued up for the tier 3 scenarios using the "join all" feature.  I got into the Tor Anroc scenario twice in a row after using join all.  It was a good time and happened to be my favorite type... the murderball (skull or whatever).  I was bolstered up to rank 28 and began to throw out heals to all my team mates.  It was awesome.  Even though I was the lowest rank in the match, I came out second in heals overall and first on my team.  That's what makes scenarios awesome in WAR is that no matter what level you are, you can contribute.  I don't know if it's the same for DPS classes or tanks, but for a healer, it was a blast.