diff --git a/marl_cyborg/core/state.py b/marl_cyborg/core/state.py
index cc4f3b7..4eeb360 100644
--- a/marl_cyborg/core/state.py
+++ b/marl_cyborg/core/state.py
@@ -10,6 +10,7 @@ def __init__(self, ip: str, hostname: str, subnet_cidr: str):
         self.privilege = 'None'  # "None", "User", "Root"
         self.decoy = 'inactive'  # "inactive" or "active"
         self.compromised_by = 'None'  # Tracks agent ID responsible for breach
+        self.edr_active = False  # Track endpoint monitoring telemetry status
 
     def __repr__(self):
         return (
diff --git a/marl_cyborg/environment/parallel_env.py b/marl_cyborg/environment/parallel_env.py
index 9c5e51e..978c691 100644
--- a/marl_cyborg/environment/parallel_env.py
+++ b/marl_cyborg/environment/parallel_env.py
@@ -224,8 +224,11 @@ def step(
 
             observations[agent] = obs_array
 
-            # Reward shaping applied here natively
-            rewards[agent] = self._calculate_reward(agent, self.global_state)
+            # Reward shaping applied here natively factoring in immediate action outcomes
+            agent_effect = resolved_effects.get(agent)
+            rewards[agent] = self._calculate_reward(
+                agent, self.global_state, agent_effect
+            )
 
         self.agents = [
             agent
@@ -401,6 +404,8 @@ def _apply_state_deltas(self, effects: Dict[str, ActionEffect]):
                 for delta_key, delta_val in effect.state_deltas.items():
                     self.global_state.apply_delta(delta_key, delta_val)
 
-    def _calculate_reward(self, agent_id: str, state) -> float:
+    def _calculate_reward(
+        self, agent_id: str, state, effect: ActionEffect = None
+    ) -> float:
         """Delegates reward logic directly to the localized Scenario module."""
-        return self.scenario.calculate_reward(agent_id, state)
+        return self.scenario.calculate_reward(agent_id, state, effect)
diff --git a/marl_cyborg/scenarios/apt_espionage.py b/marl_cyborg/scenarios/apt_espionage.py
index 1153d52..da2dea1 100644
--- a/marl_cyborg/scenarios/apt_espionage.py
+++ b/marl_cyborg/scenarios/apt_espionage.py
@@ -3,6 +3,7 @@
 
 if TYPE_CHECKING:
     from marl_cyborg.core.state import GlobalNetworkState
+    from marl_cyborg.core.action import ActionEffect
 
 
 class AptEspionageScenario(BaseScenario):
@@ -17,10 +18,31 @@ def __init__(self, agents):
         self.agents = agents
 
     def calculate_reward(
-        self, agent_id: str, global_state: 'GlobalNetworkState'
+        self,
+        agent_id: str,
+        global_state: 'GlobalNetworkState',
+        effect: 'ActionEffect' = None,
     ) -> float:
         reward = 0.0
 
+        if effect:
+            if getattr(effect, 'cost', 0) > 0:
+                reward -= (
+                    effect.cost * 0.2
+                )  # Larger penalty for wasting energy in APT scope
+
+            if 'red' in agent_id.lower() and effect.observation_data:
+                if 'shared' in effect.observation_data:
+                    reward += 5.0  # Massive emphasis on coordinated reconnaissance
+                # Massive penalty for triggering Honeypots during stealth operation
+                if 'Failed against Decoy' in str(effect.observation_data.values()):
+                    reward -= 15.0
+                elif 'kernel panic' in str(effect.observation_data.values()):
+                    reward -= 25.0
+                # Direct penalty for being blocked natively by Firewalls
+                elif 'validation failed' in str(effect.observation_data.values()):
+                    reward -= 1.0
+
         if 'red' in agent_id.lower():
             for h in global_state.all_hosts.values():
                 # Reward persistence
diff --git a/marl_cyborg/scenarios/base_scenario.py b/marl_cyborg/scenarios/base_scenario.py
index 9f53be9..fd9ef8e 100644
--- a/marl_cyborg/scenarios/base_scenario.py
+++ b/marl_cyborg/scenarios/base_scenario.py
@@ -3,6 +3,7 @@
 
 if TYPE_CHECKING:
     from marl_cyborg.core.state import GlobalNetworkState
+    from marl_cyborg.core.action import ActionEffect
 
 
 class BaseScenario(ABC):
@@ -15,7 +16,10 @@ class BaseScenario(ABC):
 
     @abstractmethod
     def calculate_reward(
-        self, agent_id: str, global_state: 'GlobalNetworkState'
+        self,
+        agent_id: str,
+        global_state: 'GlobalNetworkState',
+        effect: 'ActionEffect' = None,
     ) -> float:
         """Dynamically calculates the reward for the specified agent."""
         pass
diff --git a/marl_cyborg/scenarios/ransomware.py b/marl_cyborg/scenarios/ransomware.py
index 595f55e..fa7fe38 100644
--- a/marl_cyborg/scenarios/ransomware.py
+++ b/marl_cyborg/scenarios/ransomware.py
@@ -3,6 +3,7 @@
 
 if TYPE_CHECKING:
     from marl_cyborg.core.state import GlobalNetworkState
+    from marl_cyborg.core.action import ActionEffect
 
 
 class RansomwareScenario(BaseScenario):
@@ -18,10 +19,27 @@ def __init__(self, agents):
         self.agents = agents
 
     def calculate_reward(
-        self, agent_id: str, global_state: 'GlobalNetworkState'
+        self,
+        agent_id: str,
+        global_state: 'GlobalNetworkState',
+        effect: 'ActionEffect' = None,
     ) -> float:
         reward = 0.0
 
+        if effect:
+            if getattr(effect, 'cost', 0) > 0:
+                reward -= effect.cost * 0.1  # Micro-penalty for expending energy
+
+            if 'red' in agent_id.lower() and effect.observation_data:
+                # Reward successful intelligence sharing inherently
+                if 'shared' in effect.observation_data:
+                    reward += 2.0
+                # Penalize falling for Decoys or EDR telemetry traps
+                if 'Failed against Decoy' in str(effect.observation_data.values()):
+                    reward -= 5.0
+                elif 'kernel panic' in str(effect.observation_data.values()):
+                    reward -= 10.0
+
         red_impact_count = sum(
             1
             for h in global_state.all_hosts.values()