Alright i go into darkmatter, go into MODE tag, go to the gun that i want to model, not the one with the fp_pistol_ or w\e.
so i open the model viewer and extract the meta onto the desktop, i go into milkshape and click import OBJ wavefront and then i open the highest number thing so [pistol][0][0][2] and model it however i want.
i then go to file export OBJ wavefront and then save it to a different file that i had made earlier.
I then take the names of the original pistol and copy and paste into my pistol model. i then copy my pistol 2 more times and then add the other two lower number ones into it. i then drag and drop my pistol model into the original file and overwrite everything.
i open up darkmatter and go to the pistol. i put it in the model viewer and click import. i go to the original file the pistol.object and then click ok. then the ERROR comes up and says:


Please tell me what i can do to fix this problem and thanks.
ALSO if anyone could tell me what i could do to make a new base or add a new floor like make a bridge from one base to anoter. Thanks