Difference in W. Badge drops between ranks

[Darki]

Hi there!

I'm planning on doing some Innoent Girl runs to farm W. Badges, for both PA frags and getting some fire Sonichis (I wanna get a rainbow GC set for my WT).

I always run the mission at C, and I'm not at level to do it in A but I'd like to know if there's a difference in the "quality" of those items depending on the rank of the mission. So, short version: Will I get Silver Badges mode often than Bronze in highest ranks, or the odds are the same in all ranks?

[TenebriS]

its mostly random, as far as i know in the runs i did at A more often silver, but i also had runs in A with only bronze, so i think its an avarage randomness if silver or bronze.