Sorry to bother everyone again, but trying to get my head around this too. To get the engineer unlocked you have to turn up with the required amount (100,000 or 1 mil) of uncashed combat bonds and hand them to the engineer. Do the combat bonds have to be got from any particular system or area or will any do? Can they be obtained any way or just from missions? So hanging out at res sites and blowing away pirates counts? Thanks.