My gun does 80% damage to your shield

[alance]

How are the relative effectiveness of gun types versus shield types adjusted?

I'm referring to the fact that some guns do 80% damage to Graviton while doing 120% damage to Molecular, for example. Is this relationship adjusted by changing a value on each shield? Is it adjusted by changing a value on each gun? Is it adjusted by changing a global .ini file which defines this damage relationship? Is it untouchable hardcode?

I ask because I'm going to propose something rather complex for the mod but I don't want to do a bunch of work only to find out some of the necessary bits are impossible to change.

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"To gain a hundred victories in a hundred battles is not the highest excellence;
to subjugate the enemy's army without doing battle is the highest of excellence."