1d, variant (tram) - hard, who thought it was a good idea to send rail-bound vehicles and steerable vehicles down the same road? 3d, variant (orbital) - super

1d, variant (tram) - hard, who thought it was a good idea to send rail-bound vehicles and steerable vehicles down the same road? 3d, variant (orbital) - super hard, so hard that trajectory pre-calculations has to be performed