I was just reading thought the fallout wiki, and I found this http://fallout.wikia.com/wiki/Category:Reputation I had forgotten about the town rankings and most of the reputation perks but now that I've been reminded of them I really miss them, I wonder if there is a way to bring these in to fallout 3. Has any heard of mods in the works for this
Reputation is part of the F3C design plan, but it's not exactly on the list of "important things to do". Regardless, if someone else wants to implement a reputation system, here's how to do it.
NPCs use what's called a "Disposition Modifier" (or simply DispMod) to base their reactions on. This number is derived from the other person's charisma, an abstract (mod) value, and a faction modifier. The faction modifier is the big one to focus on.
Use a Quest script to handle the Reputation values, and store the values as Quest Variables in the Quest Script. This way, other scripts can call on those variables with the convention "questname.variablename". It's not particularly important for this quest to be run often, once ever 5 seconds (default) is fine.
NPCs belong to many different factions, one or more of which identifies the town(s) that NPC is a resident of. Use faction functions to determine the dispmod difference between the player faction and the town faction.