Found this on Wiki, the bonusses are from the Space Treasure Maps, called Flight Plans :

Underworld shinies (only appears if you're a Smuggler)

• Security Rating 1: 20 Underworld Faction points + Tier 1 Contraband items + 2-6 Illegal Pistol Modules
• Security Rating 2: 30 Underworld Faction points + Tier 2 Contraband items + 4-6 Illegal Pistol Modules
• Security Rating 3: 40 Underworld Faction points + Tier 3 Contraband items + 4-6 Illegal Pistol Modules
• Security Rating 4: 50 Underworld Faction points + Tier 4 Contraband items + 4-6 Illegal Pistol Modules
• Security Rating 5: 60 Underworld Faction points + Tier 5 Contraband items + 4-6 Illegal Pistol Modules

-- Edited by Toxeec on Sunday 30th of January 2011 07:47:14 AM