Kennel have in blue print that leave wreack, but in reality explode in air, and dont leave any wreack.(drone cost 250m what is a lot) Also crash dmg is 10dmg, but drone have 6hp, so when crash, wreack will be imediatly destroyed by crash dmg, but when i change dmg of crash dmg to less as hp (5dmg), still dont leave any wreack because its under some wierd bug.
So after fixing why drone dont leave any wreack will be need setup crash dmg that will be less as 6.
And after fixing this two thinks will be need allow leave wreack also in water, as every other units. (already its only on land)
It looks lile total minor bug, but when notice that in some game can be 20 kenels = 40drones destroyed on reclaim/building party , then will leave 8100mass what already dont leave, and that is a lot.
+ balance suggestion: decrease price of kennel drone, for some more eco friendly numbers