No problem
Now to your new problem:
My solution was to make a c_scan and give the box the event for scan_detect. Now when it get scanned, i calculate the difference between the object and the explosion (position). Than I add this factor to the explosion and all is working fine.

BTW: It is so easy. Try what I said in the post above. All entities are looped and will "explode". I will test this now too.