diff --git a/env/include/unloze_playtime.inc b/env/include/unloze_playtime.inc
new file mode 100755
index 0000000..335099b
--- /dev/null
+++ b/env/include/unloze_playtime.inc
@@ -0,0 +1,26 @@
+#if defined _unloze_playtime_included_
+  #endinput
+#endif
+#define _unloze_playtime_included_ 
+ 
+/**
+* @returns the average playtime of all connected players excluding autism bots, fakeclients, AFKS and nosteamers
+*/
+native int GetAveragePlayerTimeOnServer();
+
+/**
+* @returns the players rtv amount boost 
+*/
+native int GetPlayerWorthRTV_boost_(int client);
+
+/**
+ * returns a players hours for a specific server
+ *
+ * @int    the actual client
+ * @int    Game time hours that the client has on the server.
+ * @int    Game time minutes the client has on the server.
+ */
+
+native int GetPlayerTier_native(int client); //just the clients tier
+forward void GetPlayerHoursServer(int client, int hours, int minutes);
+forward void GetPlayerTier(int client, int tier);
diff --git a/src/zr/infect.inc b/src/zr/infect.inc
index 3ea10bd..b78db49 100644
--- a/src/zr/infect.inc
+++ b/src/zr/infect.inc
@@ -32,6 +32,7 @@
 
 #tryinclude "AFKManager.inc"
 #tryinclude "TeamManager.inc"
+#include "unloze_playtime.inc"
 
 /* Restore old REQUIRE_PLUGIN value if necessary */
 #if defined TEMP_REQUIRE_PLUGIN
@@ -704,18 +705,24 @@ public Action:InfectMotherZombie(Handle:timer)
         // Infect one of the main candidates.
         if (candidatesMain)
         {
-            // Get a random array index.
-            new i = Math_GetRandomInt(0, candidatesMain - 1);
+            // Find lowest tier candidate.
+            new lowestIndex = 0;
+            new lowestTier = GetPlayerTier_native(GetArrayCell(aCandidatesMain, 0));
+            for (new n = 1; n < candidatesMain; n++)
+            {
+                new tier = GetPlayerTier_native(GetArrayCell(aCandidatesMain, n));
+                if (tier < lowestTier)
+                {
+                    lowestTier = tier;
+                    lowestIndex = n;
+                }
+            }
+            new client = GetArrayCell(aCandidatesMain, lowestIndex);
 
-            // Get the client stored in the random array index.
-            new client = GetArrayCell(aCandidatesMain, i);
-
-            // Infect player.
             if (InfectHumanToZombie(client, _, true))
                 infected++;
 
-            // Remove player from eligible client list.
-            RemoveFromArray(aCandidatesMain, i);
+            RemoveFromArray(aCandidatesMain, lowestIndex);
             candidatesMain--;
         }
         else
@@ -735,18 +742,24 @@ public Action:InfectMotherZombie(Handle:timer)
             // Infect one of the alternate candidates.
             if (candidatesAlt)
             {
-                // Get a random array index.
-                new i = Math_GetRandomInt(0, candidatesAlt - 1);
+                // Find lowest tier candidate.
+                new lowestIndex = 0;
+                new lowestTier = GetPlayerTier_native(GetArrayCell(aCandidatesAlt, 0));
+                for (new n = 1; n < candidatesAlt; n++)
+                {
+                    new tier = GetPlayerTier_native(GetArrayCell(aCandidatesAlt, n));
+                    if (tier < lowestTier)
+                    {
+                        lowestTier = tier;
+                        lowestIndex = n;
+                    }
+                }
+                new client = GetArrayCell(aCandidatesAlt, lowestIndex);
 
-                // Get the client stored in the random array index.
-                new client = GetArrayCell(aCandidatesAlt, i);
-
-                // Infect player.
                 if (InfectHumanToZombie(client, _, true))
                     infected++;
 
-                // Remove player from eligible client list.
-                RemoveFromArray(aCandidatesAlt, i);
+                RemoveFromArray(aCandidatesAlt, lowestIndex);
                 candidatesAlt--;
             }
             else // We have no candidates at all. time to fuck over random people!