We need mass cargo plane like in Supcom.

role of transports is more flexibility ..
teleports are static and helios is very expensive .. there is yet nothing inbetween that allows more flexibility
lets say you have a multiunittransport that costs 1000 to 2000 metal and could carry 12 units .. a unitcannon costs 10 k metal a helios 30 k metal ... that gives you ten to 30 transports with the capasity to carry up to 360 already build units that you can drop all in an instand theoreticaly that don't need to wait for a proxyunit to finish a portal that they then have to get through piece by piece ... ..