Describe the feature you'd like
When saving a game, you should get a suggested savegame mentioning Campign-or-Skirmish, map name, opponent-count-if-skirmish, cheating-enabled-or-not

Describe why do you think it is needed
Coming up with a good name gets tedious.

Operating System: Any

Commit/build: None

Original game source: Any

*Reproducible in the original Generals Zero Hour?
Multiplayer affected?
Are you using any mods? (like Gentool, Rise of the Reds or Contra)

Issue explanation

Plain string files cannot reliably be read from .big files as they rely on line ending conversions of text mode file IO and .big file contents c

Currently if a unit is spotted by a third party but not in direct line of sight of a shooter, the shooter will still shoot. This should not happen.

Init mode can be inferred from the game type i.e. matchmaker -> auto lobby, otherwise -> normal lobby.

We should add a game_type field to the game_launch message just like how it is in the game_info message and add a comment stating that init_mode is deprecated.

https://github.com/FAForever/server/blob/ad7d66355fa5ab50078db40f24475418a263e5e5/server/games/game.py#L850
https://github