HaloMods "Classic" Read-only Archive

everytime i inject ameta or do something with switch vehicle models from foriegn maps when the map is loading is goes away and a sign comes up that says Gathering Exception Data how do i get to play the map

one guy told me that in HMT3 go to vehicles and then repalce Wraith-Driver with W-Driver and i think the 3rd peson entrance thingy
Does anyone know how to do this with apelican and dropship.