What map to do this weeks Weekly challenge on?

Which map should we do Co-Op Dash on?

I´ve done it with 3 People on Nightfall.
It took me just 5.32

Nightfall if you do the forklift exploit found here: http://www.youtube.com/watch?v=9u_TraQ1sUk

> Nightfall if you do the forklift exploit found here: http://www.youtube.com/watch?v=9u_TraQ1sUk

Even without it, you can finish it easily in under 7 minutes with a few players.