Its probbaly because the trigger is owned by the entire force 1, and force 1 probbaly has 3 players in it, so the trigger fires for all the players. Change the owning slot of the trigger to only 1 player.
oh I had that exact same problem, though I can't really help you except to display my trigger. I didn't really go out on a limb to correct it, because a specific number wasn't needed.
-Current player brings at least 1 men to 'Tumbar Zone'.
-Create 3 Broken Guardian at 'Tumbar Spawner' for player 7
I needed 5, but it gave me fifteen, so I said 3 to give me 9. There is more to this trigger, but it's text message, show portrait, and a destroy command that doesn't have to do with your problem. I'm not sure what causes this, except that it might be because of it's open ends, the program sits there with the trigger running a little too long and triggers it three times. You can work around this, by having it kill two jimmies the moemnt they're created,
you can try changing the open ends, the Player 5 Suffers the death of exactly 1 Mature Chrysalis
is there more than one Mature thing? if there isn't try "Player 5 controls at most 0 Chrysalis"
If not try, Player 5 suffers the death of at least 1 Chrysalis
uberfoop is right. There were three players in force one, and when i said for it to be for only player 2 it worked. And by the way, the "killing two jimmies" doesnt work. I tried it, and apparently it killed 6 instead of 2 because they all died. But now it works Thanks