anyway to change a specific unit's speed?

ya, for flying units it is in flingy.dat, there is acceleration, top speed, all that, and then for units that use iscipt.bin move control in the iscript, there is a move command that moves it how ever many pixels you specify (i think)

Flingy.dat (for some units), iscript for others.

In the iscript ones, there is a "move x" opcode in their walking script. Change the number to increase/decrease the speed.

Setflgspeed (or something like that) allows you to change a flingy's speed in the iscript.

anyone know how to open the iscript.bin?

ICECC or pyMS's pyICE

http://www.staredit.net/files/337/ Use IceCC 1.3
OR
http://www.broodwarai.com/index.php?page=pyms Use pyICE

ok i used pyICE and extracted the terran marine, so what do i look for to change the speed?

Read our tutorial's iscript section:

http://www.staredit.net/topic/440/#7671

it is a great begin for iscript starters...

and you DO want to learn it because.. just because

ok, i got the speed thing working
thanks to me... jk