Any way to make NPCs move faster?

I want to use the original half life 2 zombie with out the head crab for a snpc, but I want to make it move at a faster speed is there anyway?

-bump-

The only way is to decompile the model, and change the movement speed in the animation itself.

try

[lua]
SetSchedule( SCHED_FORCED_GO_RUN )
[/lua]

Ok how would I go about decompiling a model?