try this, i think will be work, i'm going test it my self
[EDIT]
Working fine!, but i add version for no scout cheating
, if speed not more than 250[/EDIT]
Download
kz_ljs_xm_100aa_no_cheat.sma, if you dont want for speed more than 250, this version working with all weapons, but not working with scout for example because scout got 260 speed