On the surface, you earn points based on what type of moon you are on. The
scoring legend for each moon is as follows:

BLUE MOON:

Rescuing A Miner: 10 Points
Shooting A Tower, Surface Destroyer, or an enemy shot: 10 Points
Shooting A Landing Craft: 200 Points
Shooting A Satellite: 300 Points
Successfully Taking Off From The Surface: 980

GREEN MOON:

Rescuing A Miner: 20 Points
Shooting A Tower, Surface Destroyer, or an enemy shot: 10 Points
Shooting A Landing Craft: 200 Points
Shooting A Satellite: 500 Points
Successfully Taking Off From The Surface: 1225 Points

YELLOW MOON:

Rescuing A Miner: 30 Points
Shooting A Tower, Surface Destroyer, or an enemy shot: 40 Points
Shooting A Landing Craft: 300 Points
Shooting A Satellite: 700 Points
Successfully Taking Off From The Surface: 1470 Points

RED MOON:

Rescuing A Miner: 40 Points
Shooting A Tower, Surface Destroyer, or an enemy shot: 80 Points
Shooting A Landing Craft: 300 Points
Shooting A Satellite: 1000 Points
Successfully Taking Off From The Surface: 1960 Points