The calculation is very involved, even for relatively small rockets.
You can't land even a small rocket without at least a few people observing it.
This allows a much smaller rocket to be used for a given launch.
One of them fired a small rocket at me, and it hit the ground nearby.
The game also uses small rocket boosts to speed up.
The wounded were ferried up to him by small rocket.
Between them floated the small rocket, still under attack by the Unseen.
There was nothing that could reach the small rocket without destruction.
They can also fly for short distances thanks to small rockets in their boots.
This leaves a smaller rocket, with the second stage on the bottom, which then fires.