It's understandable that we have concerns about certain behaviors in a game, and it can be frustrating when certain tactics or strategies are used repeatedly. However, it's important to consider that in Mike's cops and robbers, there will always be certain advantages and disadvantages for each side.
In my opinion, there is One way to address the issue of helicopter kills might be to introduce mechanics or limitations that make it harder for the police to use helicopters in this way. For example, you could limit the number of times a helicopter can be used, or make it so that the helicopter can only be used for a certain amount of time This could help to balance the game and make it fairer for all players.
It's also worth considering adding more options for the robbers to defend against helicopters. For example, you could introduce weapons that are specifically designed to take down helicopters.
It may be helpful to gather feedback from a broad range of players and to consider implementing a variety of changes to see what works best.