README updated

README.md

@@ -47,7 +47,7 @@ Note that only a _port-side_ mounted hoist is supported for hover missions or ot
  - Working X-Plane installation (Windows/Mac/Linux are supported)
  - X-Plane sound output enabled with system support for speech synthesis (check sound settings)
  - Working internet connection
- - [Mission-X](https://forums.x-plane.org/index.php?/files/file/41874-mission-x/) plugin v3.0.256.4.2 or later incl. "Random Mission Pack"
+ - [Mission-X](https://forums.x-plane.org/index.php?/files/file/41874-mission-x/) plugin v3.0.256.4.3 or later incl. "Random Mission Pack"
  - Latest [FlyWithLUA](https://forums.x-plane.org/index.php?/files/file/38445-flywithlua-ng-next-generation-edition-for-x-plane-11-win-lin-mac/) plugin
  - Latest [Helicopter Sling Load (HSL)](https://github.com/kristian80/HSL) plugin
  - At least one of the following aircraft models installed in X-Plane's home folder under `./Aircraft/Helicopters` using their default folder names i.e.: