Well nexon you already need to rebalance the tactical helicopters as now they are useless they die way too easily. So you have now balanced them right out of the game. If the problem was they were being used to cheaply raid oil why not just limit them from not being able to drop raiders? We have been testing them in our alliance on friendly challenges they are too slow and weak to be used in atomic age. Why release these troops at all if your going to do this every time you do? Have you ever just released your troop and left them be. Lots of oil went into level 7 factory and this new troop now a waste. You keep increasing defense in every way you can think of people failing attacks all the time won't work well for you in the long run.