Ideas for shooting in tower defense

Im doing a tower defense game

i need ideas for how do towers shoot because i try so many ideas but what happens is that if two towers attack synchronously, one does not attack, this is because when creating the bullet it is only created in one instead of all the towers that have to attack, that is why I need ways to make the towers attack,

some ideas?

How about fixing the bug instead? Show the events and we’ll help.

@RedaV check out this tower defense example.

thank you insein i fix it.