diff --git a/ATC/default.transmissions b/ATC/default.transmissions
new file mode 100644
index 000000000..5953437e7
--- /dev/null
+++ b/ATC/default.transmissions
@@ -0,0 +1,14 @@
+1 0 -1 0 "@ST approach, @CS, say again please" "Say again"
+1 0 0 1 "@ST approach, @CS, request landing at @AP" "Request landing at @AP"
+1 0 0 2 "@ST approach, @CS, request crossing airspace" "Request crossing airspace of @AP"
+1 0 1 0 "@ST approach, @CS, aborting approach" "Abort approach to @AP"
+1 1 1 0 "@ST approach, @CS, turn @TD heading @HE, @VD @AL feet" ""
+1 0 1 1 "@ST approach, @CS, turning @TD heading @HE, @VD @AL feet" "Read back"
+1 1 2 0 "@ST approach, @CS, turn @TD heading @HE" ""
+1 0 2 1 "@ST approach, @CS, turning @TD heading @HE" "Read back"
+1 1 3 0 "@ST approach, @CS, turn @TD heading @HE, You are cleared for approach to runway @RW" ""
+1 0 3 1 "@ST approach, @CS, turning @TD heading @HE, Cleared to land on runway @RW" "Read back"
+1 1 4 0 "@ST approach, @CS, you are @MI miles off course, turn @TD heading @HE" ""
+1 0 4 1 "@ST approach, @CS, turning @TD heading @HE" "Read back"
+1 1 5 0 "@ST approach, @CS, contact tower on @FR, Good day" ""
+
diff --git a/materials.xml b/materials.xml
index ab5264a26..17d8cdb0a 100644
--- a/materials.xml
+++ b/materials.xml
@@ -960,14 +960,14 @@ Shared parameters for various materials.
   <object-group>
    <range-m>5000</range-m>
    <object>
-    <path>Models/Buildings/cube-apartment.ac</path>
-    <path>Models/Buildings/medium-apartment.ac</path>
+    <path>Models/Residential/cube-apartment.ac</path>
+    <path>Models/Residential/medium-apartment.ac</path>
     <path>Models/Buildings/renovated-apartment.ac</path>
     <coverage-m2>1000000</coverage-m2>
     <heading-type>random</heading-type>
    </object>
    <object>
-    <path>Models/Buildings/small-glass-office-building.ac</path>
+    <path>Models/Commercial/small-glass-office-building.ac</path>
     <path>Models/Buildings/medium-glass-office-building.ac</path>
     <path>Models/Buildings/small-modern-office.ac</path>
     <path>Models/Buildings/small-office.ac</path>
@@ -1814,14 +1814,14 @@ Shared parameters for various materials.
   <object-group>
    <range-m>5000</range-m>
    <object>
-    <path>Models/Buildings/cube-apartment.ac</path>
-    <path>Models/Buildings/medium-apartment.ac</path>
+    <path>Models/Residential/cube-apartment.ac</path>
+    <path>Models/Residential/medium-apartment.ac</path>
     <path>Models/Buildings/renovated-apartment.ac</path>
     <coverage-m2>1000000</coverage-m2>
     <heading-type>random</heading-type>
    </object>
    <object>
-    <path>Models/Buildings/small-glass-office-building.ac</path>
+    <path>Models/Commercial/small-glass-office-building.ac</path>
     <path>Models/Buildings/medium-glass-office-building.ac</path>
     <path>Models/Buildings/small-modern-office.ac</path>
     <path>Models/Buildings/small-office.ac</path>