Shatter sucks and I don't really vote for Harvest when it comes up because there's just too much crap in the way on that map. Wreckage I vote for all the time. However, join in progress doesn't work after the match has started on either of those maps during
CTF for some reason, which makes me hate CTF even though I love CTF.
Nay especially since in Big Team they always give you both Shatter and Wreckage as map choices together instead of splitting the two of them up and in my opinion both maps are pretty awful for big team.