We all know Gravel Pit is horrible. Or if you don't, then you have to admit most of the players absolutely despise it. Edifice seems to be the map to take its place in the ESEA rotation (and already has in UGC). Despite that, we may be doing A/D wrong.
Take a look at this posting of an e-mail from Valve about a Gpit-style (A+B->C) map, mainly the second set of comments: http://forums.tf2maps.net/showpost.php?p=153838&postcount=298
This is basically Valve saying that Gpit-like maps are horrible. It seems like it really only works in 6s.
But does it really? Does it truly work for 6s?
Correct me if I'm wrong, the only CP maps we've actually tried are Dustbowl (due to it being one of the first maps), Gpit, Gorge, and Edifice (please excuse me if this list is wrong, I've only been playing 6s since last year). Dustbowl is long and just generally bad for 6s, Gpit is Gpit, Gorge... don't know much about it but it apparently wasn't liked despite Valve making it specifically for 6s IIRC. Edifice seems to be the best liked out of the four; however, opinions of it are very mixed: http://www.ugcleague.com/forum/showthread.php?6493-Cp_Edifice-in-the-Summer-Season&p=81719&viewfull=1#post81719
Maybe Edifice is a bad map, maybe it's a good map, maybe it has potential but needs some things fixed, or maybe it's just a bad format. I don't think we'll know until we test some more linear A/D maps.
So I propose that we try to find some single stage, 2- or 3-CP A/D maps that seem interesting and might be fun in 6s. If I get new map pugs running again, I will throw in some of these maps. And if someone else does, they should do the same. Maybe throw a (what is thought of as) good map into a UGC season, see how well it's liked, make changes if it's not universally disliked, and throw it into an ESEA season. Maybe we'll find out that linear A/D works way better than Gpit-style.