diff --git a/TechTree/First3.md b/TechTree/First3.md
index cde6538..b9e2fa0 100644
--- a/TechTree/First3.md
+++ b/TechTree/First3.md
@@ -36,6 +36,10 @@ Level 0
             * Simulate Fire Situation
             * Simulate flooding / Leaky Valves
         * Access Security System
+            * CCTV
+            * FIRE ALARM
+            * ENVIRONMENTAL CONTROL SYSTEM
+                    * SOURCE [https://www.nasa.gov/centers/johnson/pdf/390651main_shuttle_crew_operations_manual.pdf]
         * Get report on damages
         * Access to different sections of the ship
         * Access to ports / probe launch 
@@ -48,6 +52,8 @@ Level 0
         * Access Hydroponics Base
         * Get access to Simulation Module
             * Energy to production mapping
+            * Simulate Soil Testing 
+            * Create Soil Bacteria
     * Connect Bot to Space Ship Dashboard    
         * Power up Complete Dashboard ( once previous pieces are done  )                         
 * 3	         Power Systems
@@ -55,6 +61,13 @@ Level 0
     * Simulate Power Generation module
  	                                   
 * 4	         Radar	Initialization
+    * Get access to Radar Simulation
+        * Operating Antenna
+        * Identifying objects
+        * Setting up Zones
+            SOURCES
+            [https://www.furuno.com/files/Manual/34/upload/OME35790D1_MODEL1835_1935_1945.pdf]
+        
 * 5	         Health System	Initialize space suit
 * 6	         Information Gathering System	Connect space ship control dashboard
 * 7	         Hydroponics System	Activate the hydroponics part of the ship