Previously an asteroid field could be generated on map creation. This has been a bit limiting, as it always appeared in the same position, meaning you had to build to the same leftside location if you wanted to use tractor beams to grab asteroids from it. I've now removed that asteroid field (apart from existing saves), and now asteroid fields can appear in multiple locations around the map. They behave like the scrap fields, although generating asteroids (not scrap) every so often. Think this gives much more variety to maps, and gives more ore resources for tractor beam usage. Patch notes:-

• New asteroid fields created across the level on map generation.
• New asteroid fields generate asteroids depending on size.
• Old asteroid field generation removed (except for previous saves).