If ya wanna check wether a building/object has been blown up or not,
then screw the satchel-blow-up-detection and simply use some trigger :
Cond. field
!(alive (object 13234)) && Player Ammo "PipeBomb" < 3This trigger would fire (I hope) when the building (with the object-ID 13234) is history
AND you (player) have less then 3 satchels left.
Just click on the obj. ID button in the editor (ya need the RES upgrade to do this)
and zoom in to find the ID# of the building.
...or simply NAME the thing if it's a custom placed object.
GetDammage MyBuilding >=0.8 AND MyGuy ammo "PipeBomb" <=2som'n like this could work I guess