Custom payload maps?

[Combine_Advisor]

Do such maps exist?

 

[Planetary]

There's a bunch of them, check the map section in the TF2 Steam forums.
pl_dustbowl is the only one I've played though, it's sort of interesting, when you figure out the layout changes.

Waiting for cp_goldrush though...

 

[Sheepo]

Yea, cp_dustbowl is pretty good, but I haven't tried any others.

 

[Iron_cube]

www.fpsbanana.com