QUOTE
Umm...I killed mizer every time i've met hi but...last time in battlefield 10 I stole from him and I got heavy boots or somelike. <_< Did I have to get his boots every time before the warp boots appear?
Killing him isn't going to be enough unless your luk is high enough. You must REMOVE his item, either by making him drop it, breaking it, or stealing it. The Warp Shoes are his fourth item, I believe.
And guys, I told you that he doesn't show up in BF10. :(