diff --git a/game/event/frontlineattack.py b/game/event/frontlineattack.py
index 7a4ce52b..91d4beed 100644
--- a/game/event/frontlineattack.py
+++ b/game/event/frontlineattack.py
@@ -30,7 +30,7 @@ class FrontlineAttackEvent(Event):
     def is_successfull(self, debriefing: Debriefing):
         alive_attackers = sum([v for k, v in debriefing.alive_units[self.attacker_name].items() if db.unit_task(k) == PinpointStrike])
         alive_defenders = sum([v for k, v in debriefing.alive_units[self.defender_name].items() if db.unit_task(k) == PinpointStrike])
-        attackers_success = (float(alive_attackers) / alive_defenders + 0.01) > self.SUCCESS_FACTOR
+        attackers_success = (float(alive_attackers) / (alive_defenders + 0.01)) > self.SUCCESS_FACTOR
         if self.from_cp.captured:
             return attackers_success
         else:
diff --git a/game/event/frontlinepatrol.py b/game/event/frontlinepatrol.py
index 1fff394d..9e0d2a7c 100644
--- a/game/event/frontlinepatrol.py
+++ b/game/event/frontlinepatrol.py
@@ -42,7 +42,7 @@ class FrontlinePatrolEvent(Event):
     def is_successfull(self, debriefing: Debriefing):
         alive_attackers = sum([v for k, v in debriefing.alive_units[self.attacker_name].items() if db.unit_task(k) == PinpointStrike])
         alive_defenders = sum([v for k, v in debriefing.alive_units[self.defender_name].items() if db.unit_task(k) == PinpointStrike])
-        attackers_success = (float(alive_attackers) / alive_defenders + 0.01) >= self.SUCCESS_FACTOR
+        attackers_success = (float(alive_attackers) / (alive_defenders + 0.01)) >= self.SUCCESS_FACTOR
         if self.from_cp.captured:
             return attackers_success
         else:
diff --git a/game/event/insurgentattack.py b/game/event/insurgentattack.py
index ea1a6eab..4353541d 100644
--- a/game/event/insurgentattack.py
+++ b/game/event/insurgentattack.py
@@ -24,7 +24,7 @@ class InsurgentAttackEvent(Event):
     def is_successfull(self, debriefing: Debriefing):
         killed_units = sum([v for k, v in debriefing.destroyed_units[self.attacker_name].items() if db.unit_task(k) == PinpointStrike])
         all_units = sum(self.targets.values())
-        attackers_success = (float(killed_units) / all_units + 0.01) > self.SUCCESS_FACTOR
+        attackers_success = (float(killed_units) / (all_units + 0.01)) > self.SUCCESS_FACTOR
         if self.from_cp.captured:
             return attackers_success
         else: