Thanks to VastanX's feedback, a new version has been added. This should fix all of the issues he pinpointed, along with a minor thing I noticed upon testing the map again.
- Fixed an issue causing a sound effect during the final cinematic to continue playing at unintended times.
- Hydralisks will no longer become unavailable if the player only has a Lurker Den.
- Fixed an issue causing the 7th and following Leviathans to not have attack waves activated.
- The final cinematic will no longer occur twice after the first.