I think we are not understanding each other, allow me to clarify my problem...
Let's say all my spaceships have two possobile weapons: a minigun and a missile launcher.
The Minigun has a fire rate of 0.25 seconds and the Missile launcher has a 2 seconds fire rate.
I have renamed the behaviors to Minigun and Missile, respectively, and am using "On Minigun shoot" and "On Missile shoot" events to spawn the bullets.
The distance is irrelevant (set to a large value), and rotations are disabled for both (I'm controlling it manually).
Both turrets are in the Spaceship family, toggled for each sprite needs (having one or both), and all of them have the Enemies family as target.
My issue is that when I have both turrets enabled, the "On Missile shoot" event is currently being fired 4 times per second (fire rate of 0.25), when only the Minigun turret should.
If I disable the Minigun turret, the Missile turret behaves as expected.