Quote: "When i kill one enemy there is spawned another or whole group of them."
https://forum.game-guru.com/outbound?url=https%3A%2F%2Fforum.game-guru.com%2Fthread%2F207801%3Fpage%3D10%23msg2533489
Quote: "When i destroy (for example)wooden box, some planks are spawned at this place (it simulating descructable enviorment) "
You'll need debris shape (planks) model.
Place "debris" closest to your explodable item, and make it "SpawnAtStart = no" via properties panel.
Assuming explodable item named "myItem" and debrishape named "MyDebris", so go to my "myItem" properties and type "MyDebris", in "IfUsed" field. (without quotes).
3com
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