Shigai a17b

- Small update
- Made the bridge over B solid to improve defensibility
- Added some more railings
- Delay between trains is now a bit longer
- Moved some pickups around
- Moved some geometry around to increase breathing room
- Closed off the window balcony for blue at final (as an experiment)

- Added a red forward spawn to defend B
- Blocked a side route for blue before A is capped
- Removed a superfluous route between B and C
- Tweaked pickup locations

- Adjusted final point position (no more 45 degree angles!
- Adjusted blue attack routes to final point
- Added a new balcony for blue to attack final point
- Adjusted health pickup locations
- Trains are now straight (they had to be for the multi-cars...)
- Adjusted B-C right connector to be more natural to flow into as blue
- Reduced some sightlines

- Made first point more gardeny rather than a street
- Made A point barrier transparent

- New final point and leadup
- Reworked a lot of the map
- 5 years revival