here a image i got, while compiling

I dont realy want to waist 4 days of mapping, so hopefully there is a easy fix, i dont have the Blackhawk on my map now ias i deleted it, but i still get this error, stopping me adding more to the map, so PLEASE help if you can..
incase you cant read the Error message it says.ERROR Xmodel 'Prefabs/misc_models/vehicle_blackhawk,map' not found
failed to load misc_model 'Prefabs/misc_models/vehicle_blackhawk,map'
Also how to you add fire to the Barrels, as ive forgotten hw to do this,and cant find any tuts on helping me..
please reply ASAP, as i wanta get this map finished be for the weekend, and not start over again..
Cheers,
Steve