prevent from breaking other things

core/src/mindustry/entities/bullet/BulletType.java

@@ -25,7 +25,7 @@ public abstract class BulletType extends Content{
     public float drawSize = 40f;
     public float drag = 0f;
     public boolean pierce, pierceBuilding;
-    public int pierceCap = 1;
+    public int pierceCap = -1;
     public Effect hitEffect, despawnEffect;
 
     /** Effect created when shooting. */
@@ -236,7 +236,7 @@ public abstract class BulletType extends Content{
     }
 
     public void init(Bullet b){
-        if(pierceCap > 1) {
+        if(pierceCap >= 1) {
             pierce = true;
             pierceBuilding = true;
         }

core/src/mindustry/entities/comp/BulletComp.java

@@ -145,7 +145,7 @@ abstract class BulletComp implements Timedc, Damagec, Hitboxc, Teamc, Posc, Draw
             });
         }
 
-        if(collided.size >= type.pierceCap) {
+        if(type.pierceCap != -1 && collided.size >= type.pierceCap) {
             remove();
         }
     }