I recommend in the mission setup, I usually do this
PlayerSetHealth(200) -- gives the player 200 health
AreaTransitionXYZ(0, -34, -92, 1.001125435)
DATLoad("1_B.DAT", 2)
DATInit()
Wait(2000)
Then write the teleport command to teleport to the other place.
Basicly what this does, that when the script is launched, it teleports you to another place, loads the area and then by the time that the place , giving the place time to get loaded and then teleports you to it.