I want to change fighter's and DB guild gold rewards, how can I do that?

Changing the thieves guild ones was easy (dunno if it'll work or not) but I dont see how to change the fighters or DB ones!

I always see this

Player.AddItem Gold001 FGConversations.FGRewards

in the result script for the FG

In the DB I dont see anything lol

Oh, also tell me how to change the arena ones please

I don't know what to change for the Fighter's Guild, but I can help with the other two. For the Arena, change these Leveled Lists (found under "Leveled Item" in the CS):

ArenaLeveledGoldBeatGrand ; This is the reward for beating the Grand Champion
ArenaLeveledGoldChamp ; This is the reward for beating the Yellow Team Champion
ArenaLeveledGoldGrandRecur ; This is the reward for your weekly matches as the Grand Champion
ArenaLeveledGoldReward ; This is the reward for the normal matches

For the Dark Brotherhood, change this Leveled List:

DarkGoldBonus