how and what are you placing?
put a soldier in the building, then in the soldiers INIT field put the command
this setpos [getpos this select 0, getpos this select 1, 4]
*you have to use some trial and error for the height, its not always 4
you could also just put the soldier out in the open, put your player looking at the soldier then preview it... you should see the soldier fall to the ground.
also i forgot where i downloaded this from but heres some scripts that places the guy randomly in the building, and another to place a random patrol in the building...all you have to do is place a soldier near any building and it will automatically jump the guy in the building and he will start patrolling, or just be randomly placed.
scripts:
http://download.yousendit.com/FAF10ACF6E4D98D9