Gawdzilla

I found this on another post, It counts how many vehicles are in a trigger area. I'm making some modifications and testing it rn: (count (thislist select {alive _x && (_x isKindOf "Tank" || _x isKindOf "Car")})) isequalto 0

I'm making a mission where there are 6 missions to do but I only want players to do 3 missions maximum The way I intend to do it is like so: - Every mission has an object "attached" to them - Once the players complete a mission, the attached object gets moved in the trigger - The trigger counts how many objects there are in itself and if the amount is equal to 3.. It gets activated How do I count how many objects are in the trigger and (optionally) how do I detect that a mission has been completed and activates a separate trigger? Thanks a lot ❤️ Edit 1: I found and edited a code, it works but only with units instead of objects but it's better than nothing: (count (thislist select {alive _x })) isequalto 3