Rep Cheat (sort of)
Dunno if anyone has noticed this, but if your in a freeport etc and there is a guy who'll sort your rep out with outcasts for cash for example, by saving then reloading the game he'll often change to a guy offering bribe for corsairs or some other faction, you can keep reloading the game till you see a bribe for a faction you want, as long as your in the system near the faction
I used this to get good with corsairs in order to get a Titan

I used this to get good with corsairs in order to get a Titan
