AFAIK there is no performance difference between configFile and
missionConfigFile.
Using missionConfigFile by default simplifies loot scripts and makes the
extra config variable unnecessary. It's one less step for admins to
customize their tables.
Since typed bags spawn in bulk (usually 2x 4 different bag types) this
reduces bloodbag output slightly when classic system is enabled.
Medboxes were spawning with 3-8 blood bags, this reduces it to about 1-6
which should be similar to 1051 values IIRC. Feel free to adjust this up
or down if needed.
