Played some customs late last week with Fin and a couple of you other guys and I must say that it was really fun playtesting all of the maps. We didn't get to try them all out that night I played but "Sky Perch" was a clear favorite for me. It reminded me a lot of Lockout for some reason as it had multiple elevations and lots of jumps that you could take.
That one map that had spawn points pointed outwards towards the ledges was just lots of :lol I would like to play that map again with the fixed spawn points as it had some nice flow through it as well.
Bumper hogs was also lots of fun. I hope you guys were able to try it out on Saturday. I got the updated maps and gametype from Alakaline below with a scoring system that works about 99% of the time now.
http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=68856264
http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=68857168
Also after now being able to play on the Mythic playlist for a few games, I must say that I am not a fan of Orbital at all. I simply do horrible in that map. The line of sight just do not work for me. This map will take me a long time to get used to.
Default sandbox plays fine I think. Dropping the grav lift at the right spot is key on this map but fear that it is too small to play as a BTB map. Hopefully Shishka has a nice BTB map lined up in one of the 6map variants being released for MM.
Assembly is a great map bar none. Love the jumps you are able to do and will be a new favorite for lots of people.