With all this talk of reinforcements, and with my ongoing re-design of civilian evacuation mod, it sounds like we should talk about quantum gate beacons.
Essentially, in the cannon, ACU's are unique in that they don't need a beacon, either to teleport to a remote location, or from it via recall: As long as there is a gate on one side, the ACU can teleport, and with upgrade it doesn't even need the gate.
However, if we're going to teleport reinforcements onto the planet and, in the case of Civilian Evacuation, teleport civilians off the planet, we need to use beacons. Not only is it canon, but it also makes a decent gameplay mechanic.
That said, FA only comes with one beacon model, that of the Cybran quantum gate beacon. Can we get somebody to make one for the other factions? Who did the new models for the HQ factories in engie mod? Those look pretty good.