diff --git a/extensions/reviewed/FireBullet.json b/extensions/reviewed/FireBullet.json
index aa8a0ab1..f0b5258a 100644
--- a/extensions/reviewed/FireBullet.json
+++ b/extensions/reviewed/FireBullet.json
@@ -225,8 +225,8 @@
                               "parameters": [
                                 "Object",
                                 "Behavior",
-                                "-",
-                                "1"
+                                "=",
+                                "max(0,Object.Behavior::AmmoQuantity() - 1)"
                               ]
                             }
                           ]
@@ -2844,7 +2844,7 @@
                     "Object",
                     "Behavior",
                     "=",
-                    "GetArgumentAsNumber(\"Value\")"
+                    "max(0,Value)"
                   ]
                 }
               ]
@@ -2891,7 +2891,7 @@
                     "Object",
                     "Behavior",
                     "=",
-                    "GetArgumentAsNumber(\"Value\")",
+                    "max(0,Value)",
                     ""
                   ]
                 }
@@ -4729,7 +4729,7 @@
                   "parameters": [
                     "Object",
                     "Behavior",
-                    "=",
+                    "<=",
                     "0"
                   ]
                 }