Missile Accuracy: A Mystery

[Philbert]

Well I work in software myself, and it is quite usual, and good practice even, that for every setting possible in the config files you create a hardcoded default value for when the setting is absent from the config file.
It makes your software more robust to dislexic users.

Also good practice is then to include the item commented out in the config file depicting that default value.

[Lusted]

My guess as well is that there is a default accuracy value for missiles if there is no accuracy_vs_units line in the projectile file.

[Lamprey]

Makes sense; this is how Windows itself works. Ever notice then when you want to change a Windows setting, you usually ADD a value to a registry key rather than MODIFY an existing one? It's because in absence of it the application default comes into play.

I see no reason for MTW2 to work differently.