http://www.fpsbanana.com/maps/103929
pl_redship is an overly complicated payload map With various objectives. Destroying panels and pushing the cart for the most part though.
the coolest part is that there are 3 different kinds of payloads: A normal bomb with a dispenser, A sentry/dispenser cart, and a radioactive emission bomb (you can push a button in the spawn every two minutes to kill red). The weather also varies, or so I've been told, (only played it twice). And apparently there are 9 easter eggs (one for each class).