diff --git a/scala/guiUtils/src/main/scala/zombies/parameters.scala b/scala/guiUtils/src/main/scala/zombies/parameters.scala
index 5de1384..e827127 100644
--- a/scala/guiUtils/src/main/scala/zombies/parameters.scala
+++ b/scala/guiUtils/src/main/scala/zombies/parameters.scala
@@ -115,6 +115,7 @@ object parameters {
 
 
   val redCrossSize = Range("redCrossSize", RangeValue(0, 50, 1, 10, 0), Variable)
+  val redCrossPerception = Range("redCrossPerception", RangeValue(0.0, 5.0, 0.01, physic.humanPerception, 0.0), Variable)
   val redCrossExhaustionProbability = Range("redCrossExhaustionProbability", RangeValue(0.0, 1.0, 0.01, physic.humanExhaustionProbability, 0.0), Variable)
   val redCrossExhaustionMechanism = OnOff("redCrossExhaustion", false, Variable, Seq(redCrossExhaustionProbability.name))
   val redCrossFollowProbability = Range("redCrossFollowProbability", RangeValue(0.0, 1.0, 0.01, physic.humanFollowProbability, 0.0), Variable)
@@ -129,7 +130,7 @@ object parameters {
     } :+ armyAggressive.name)
 
   val redCrossOnOff = OnOff("red cross", false, Variable,
-    Seq(redCrossSize, redCrossFollowProbability, redCrossInformProbability, activationDelay, efficiencyProbability).map {
+    Seq(redCrossSize,redCrossPerception, redCrossFollowProbability, redCrossInformProbability, activationDelay, efficiencyProbability).map {
       _.name
     } ++ Seq(redCrossAggressive.name, redCrossExhaustionMechanism.name))
 
diff --git a/scala/guiUtils/src/main/scala/zombies/simulate.scala b/scala/guiUtils/src/main/scala/zombies/simulate.scala
index 8093be1..3550264 100644
--- a/scala/guiUtils/src/main/scala/zombies/simulate.scala
+++ b/scala/guiUtils/src/main/scala/zombies/simulate.scala
@@ -48,6 +48,7 @@ object simulate {
         case _ => RedCross(
           value(redCrossSize),
           scalaOptionValue(redCrossExhaustionMechanism, redCrossExhaustionProbability).map{_.asInstanceOf[Double]},
+          value(redCrossPerception),
           value(redCrossFollowProbability),
           value(redCrossInformProbability),
           booleanValue(redCrossAggressive),
diff --git a/scala/model/src/main/scala/zombies/api.scala b/scala/model/src/main/scala/zombies/api.scala
index c841d76..725f019 100644
--- a/scala/model/src/main/scala/zombies/api.scala
+++ b/scala/model/src/main/scala/zombies/api.scala
@@ -191,6 +191,7 @@ trait DSL {
   def RedCross(
     size: Int,
     exhaustionProbability: Option[Double] = None,
+    perception: Double = physic.humanPerception,
     followProbability: Double = 0.0,
     informProbability: Double = physic.humanInformProbability,
     aggressive: Boolean = true,
diff --git a/scala/model/src/main/scala/zombies/simulation.scala b/scala/model/src/main/scala/zombies/simulation.scala
index cbbfe5d..d4231e9 100644
--- a/scala/model/src/main/scala/zombies/simulation.scala
+++ b/scala/model/src/main/scala/zombies/simulation.scala
@@ -72,6 +72,7 @@ object simulation {
   case class RedCross(
     size: Int,
     exhaustionProbability: Option[Double] = None,
+    perception: Double = physic.humanPerception,
     followProbability: Double = 0.0,
     informProbability: Double = physic.humanInformProbability,
     aggressive: Boolean = true,
@@ -167,7 +168,7 @@ object simulation {
           walkSpeed = walkSpeed * cellSide,
           runSpeed = humanRunSpeed * cellSide,
           exhaustionProbability = humanExhaustionProbability,
-          perception = humanPerception * cellSide,
+          perception = redCross.perception * cellSide,
           maxRotation = humanMaxRotation,
           followRunningProbability = redCross.followProbability,
           fight = Fight(humanFightBackProbability, aggressive = redCross.aggressive),
diff --git a/scala/zombieland/.gitignore b/scala/zombieland/.gitignore
new file mode 100644
index 0000000..95e59e5
--- /dev/null
+++ b/scala/zombieland/.gitignore
@@ -0,0 +1,2 @@
+zombieland.zip
+
diff --git a/scala/zombieland/src/main/scala/zombies/zombieland.scala b/scala/zombieland/src/main/scala/zombies/zombieland.scala
index 4be18ce..160d36d 100644
--- a/scala/zombieland/src/main/scala/zombies/zombieland.scala
+++ b/scala/zombieland/src/main/scala/zombies/zombieland.scala
@@ -40,6 +40,7 @@ object zombieland {
 
       redCrossOnOff,
       redCrossSize,
+      redCrossPerception,
       redCrossExhaustionMechanism,
       redCrossExhaustionProbability,
       redCrossFollowProbability,