No its not a missing file that the truck needs, its a fairly common error caused by the truck having too many vertices and faces for the game to handle with the truck reflections turned on... i believe the only fix is to reduce these in binedit...
<center>just about every known MTM2 error has been addressed at the MTMG and then some, except maybe this peculiarity.</center>
<center><IMG SRC="http://malibuco.hostme.com/images_mtmg/MTMG_error.gif" border=0></center>
<center>
-=MTMG=- </center>
i've met general failure and also major malfunction
------------------
<IMG SRC="http://home.earthlink.net/~richathr/ratlogo10x10.gif" border=0>
Malibu350