Hello, I am making a game with a character who has four types of bullets, one of which gives a small damage but passes through the enemy. My problem here was that whenever I fired the bullet it stuck to the first enemy itself and destroyed itself after the time I set. To counter this I thought maybe I could set the gameObject.isTrigger = true whenever the collision happens, so the bullet would pass through it and when it is out of the object I set gameObject.isTrigger = false, so that it would turn on collision physics again. Now whenever I run the game and fire that bullet, it hits the first enemy and then unity simply crashes. Because of that, I haven't been able to find the error as well. Can you please suggest any other method that might be more successful, or a correction for the code I used which I have written below,

function OnCollisionEnter(bullet : Collision){  

if(bullet.gameObject.name == "stunbullet"){
//stun bullet code
}
else if(bullet.gameObject.name == "damagebullet"){ //damage bullet code } else if(bullet.gameObject.name == "pushbackbullet"){
//push back bullet code
}
else if(bullet.gameObject.name == "piercebullet"){
ApplyDamage(1) //Code to Apply Damage on the enemy object
while(bullet.gameObject.name == "piercebullet"){
gameObject.collider.isTrigger = true;
}
gameObject.collider.isTrigger = false;
}
}

all the other types of bullets are working fine except the pierce bullet which should go through the enemies.

Help would be most appreciated