Add parameters with thematic presets for different modsets

[0xlord]

The mission always starts as vanilla as it can without creating a whitelist. It would be very helpful to have a parameter to set a predefined preset for enemies/loot/allowed equip and so on.

For example a predefined 40k or SOG PF whitelist for a 40k or SOG PF server. This would also bring up the immersion tremendeously.