i wanted to use some slower levelling mod, i guess this one is the best? (http://www.fallout3nexus.com/downloads/file.php?id=97)
Well actually that mod is far from "the best" . . . changing the iXPbumpbase is NOT the best way to slow down leveling as it can cause major compatibility problems . . . such as being totally incompatible with Broken Steel.
I'd recommend my own http://www.fallout3nexus.com/downloads/file.php?id=7674, not just because I created, but because it is simple, and totally compatible with all the DLC (and nearly every other mod), and it can be added and removed from any ongoing game, without causing any problems.
There are two esps in the archive . . . just activate the one that is closer to the leveling speed you want. And you can switch between them at any time,if you're not happy with how fast you are leveling.
* The differences between the two esps:
- Regular version (Arwen_XPR.esp): reduces XPR for killing by 75%, and reduces XPR for most other achievements by 25-50%.
- Extreme version (Arwen_XPR_Extreme.esp): reduces XPR for killing by 80%, and reduces XPR for most other achievements by 40-60%
- The differences between my two versions may not seem like much, but I've been using the extreme version in my own game for a while, and gaining experience points is noticeably slower.
- As a test ... I played the game for nearly an hour with each esp (with virtually identical gameplay, each starting at the beginning of Level 2.
Using the Arwen_XPR.esp: I gained 169 XP (31% of what I needed to reach Level 3).
Using the Arwen_XPR_Extreme.esp: I gained only 104 XP (19% of what I needed to reach Level 3).
If you need even slower leveling, you can also add my Reduced Quest XPR Module, which part of my http://www.gamesas.com/index.php?/topic/1088693-relz-arwens-realism-tweaks-thread-no7/, but is a totally independent esp.