Launching into a save on a takeoff mission takes off on menu

[Terin]

Describe the bug
If you launch the game when your last save is a takeoff/launch/flee mission, the game will play the takeoff noise and change the planet to empty as soon as the game is fully loaded.

To Reproduce
Steps to reproduce the behavior:

1. Go a mission with takeoff/launch/flee (such as Remnant: Defense 1).
2. Trigger the takeoff, and quit the game.
3. Re-launch the game, and notice the takeoff noise and planet name disappearing once everything is loaded.

Expected behavior
No sound will play, and the planet name will remain until you enter the save proper.

System:

• OS: Windows 10 Pro, version 21H1
• Game Source: Self-compiled
• Version: commit hash 3ccb7b4