this project has ended, but the fact you have shown interest may lead me to working on it again... right now I am only working on my main map, ut4_slide which is coming along very nicely. Ut4_cargo has a completed layout, it is just bare and needs a lot of touching up as well as many details. I am also mapping for Unvanquished and working on a map called 'Aztech.' The layout is still under construction, and it's difficult due to the entire map needing either mesh or tri-souping... very time consuming
but yeah, ut4_slide beta1 should be up soon!