I tried to make a custom base effect that affected the speed multiplier and was detrimental, however it came up as null on the armor and appeared to do nothing. Is it possible to reduce movement speed?

Would simply reducing Agility work?

That is the method I might actually go to, however agility affects more then just movement speed.

Agility doesn't seem to affect run speed, only reload/etc speed.

As to changing the player's speedmult, when you do it with the console you have to sneak/unsneak to get the value to update, and I remember hearing people talk about damaging legs in scripts to get it to do so, so you might try that.

Actually, I think if you damage the value itself (player.damageav speedmult 1) it'll update... probably.

I tried the damageAV trick on SpeedMult. Didnt work (at least in regards to slowing down backpedaling speed). I ended up doing it the FO3 way.... Restore then damage the leg. (I do Restore before damage, because I found doing it the other way actually healed a leg if it was already crippled...since you can't damage a limb below 0)

Set up a script that damages your leg in one frame, then heals it in the next.

Well, in Fallout 3 I made script for perk which increased movement speed, so here you are:

float DoOncebegin GameMode	if Player.HasPerk FasterThanShadow 		if DoOnce == 0			Set DoOnce to 1   	     	  player.ModAV SpeedMult 15		endif	endifend

It increases your movement speed by 15%.

If you want to decrease movement speed then just write "-15" instead of "15".

Cool thanks!

Interesting, this is the same command I was talking about, you should still have to do something to make the value refresh as far as I know?