Piratez_Globals.rul:
bughuntMinTurn: 15 <---- number of turns
bughuntMaxEnemies: 2 <--- won't activated unless less than or equal to this amount
bughuntRank: 0 <--- actually no idea, I haven't seen rank counting for bughunt but might be missing something
bughuntLowMorale: 70
bughuntTimeUnitsLeft: 35