Redone many of the units to be more in line with the infantry tech levels.
Fixed the inability to build flagships.
Removed a lot over modifiers that, when stacked, become way too overpowered.
Added a few custom options to base game random events.

Fixed a possible situation where an improvement decision is taken before an improvement event is clicked.

Hopefully, the weird error with rebels breaking country breaking the disaster is solved.

Fixed an escaped typo.