If custom map, you can use
at_spawner(bfv).
When One vehicle dies, 50 sec later at_spawner connected to that vehicle will die.
In BF1942 it's not "
at_" that's they key.
But it's something simular.
Look for a spawner with a _ in, then you know what to do.
A destructable house could be built this way.
Build one house and split it to 5 or 6 parts.
Make them vehicles you can spawn.
Ground of house is mother to all other at_spawners.
You will have;
Groundspawner
at_housepart01
at_housepart02
at_housepart03
at_housepart04
at_housepart05
at_housepart05 spawns on at_housepart04
at_housepart04 spawns on at_housepart03
at_housepart03 spawns on at_housepart02
at_housepart02 spawns on at_housepart01
at_housepart01 spawns on Groundspawner
Or every at_spawner is connected to Groundspawner.
Depending how house is split up.
If at_housepart01 is destroyed every spawner connected to it will vanish after a while.
Make sure all parts are connected to Groundspawner, will look strange if one piece is hanging in air for 50 sec.
I'm not good at 3D so I can't do this myself, but if someone could make this, we will have a killer cool house or 2 to play with.
Just an idea.