diff --git a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
index d099192a4f..377d5f27d4 100644
--- a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
+++ b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
@@ -123,11 +123,15 @@
     <Compile Include="Widgets\MenuButtonWidget.cs" />
     <Compile Include="Widgets\RadarWidget.cs" />
     <Compile Include="Widgets\ResourceBarWidget.cs" />
+    <Compile Include="World\CreateMPPlayers.cs" />
+    <Compile Include="World\MPStartLocations.cs" />
+    <Compile Include="World\MPStartUnits.cs" />
     <Compile Include="World\PlayMusicOnMapLoad.cs" />
     <Compile Include="World\RadarPings.cs" />
     <Compile Include="World\ResourceClaim.cs" />
     <Compile Include="World\ResourceClaimLayer.cs" />
     <Compile Include="World\SmudgeLayer.cs" />
+    <Compile Include="World\SpawnMapActors.cs" />
     <Compile Include="SpriteLoaders\ShpTDLoader.cs" />
     <Compile Include="SpriteLoaders\ShpTSLoader.cs" />
     <Compile Include="SpriteLoaders\TmpRALoader.cs" />
diff --git a/OpenRA.Mods.RA/CreateMPPlayers.cs b/OpenRA.Mods.Common/World/CreateMPPlayers.cs
similarity index 98%
rename from OpenRA.Mods.RA/CreateMPPlayers.cs
rename to OpenRA.Mods.Common/World/CreateMPPlayers.cs
index 7755d0502c..aa7f05bb1b 100644
--- a/OpenRA.Mods.RA/CreateMPPlayers.cs
+++ b/OpenRA.Mods.Common/World/CreateMPPlayers.cs
@@ -12,7 +12,7 @@ using System.Linq;
 using OpenRA.Network;
 using OpenRA.Traits;
 
-namespace OpenRA.Mods.RA
+namespace OpenRA.Mods.Common
 {
 	[Desc("Attach this to the world actor.")]
 	public class CreateMPPlayersInfo : TraitInfo<CreateMPPlayers> { }
diff --git a/OpenRA.Mods.RA/MPStartLocations.cs b/OpenRA.Mods.Common/World/MPStartLocations.cs
old mode 100755
new mode 100644
similarity index 98%
rename from OpenRA.Mods.RA/MPStartLocations.cs
rename to OpenRA.Mods.Common/World/MPStartLocations.cs
index 6c88e55f7a..790d820a98
--- a/OpenRA.Mods.RA/MPStartLocations.cs
+++ b/OpenRA.Mods.Common/World/MPStartLocations.cs
@@ -15,7 +15,7 @@ using OpenRA.Graphics;
 using OpenRA.Primitives;
 using OpenRA.Traits;
 
-namespace OpenRA.Mods.RA
+namespace OpenRA.Mods.Common
 {
 	public class MPStartLocationsInfo : TraitInfo<MPStartLocations>
 	{
diff --git a/OpenRA.Mods.RA/MPStartUnits.cs b/OpenRA.Mods.Common/World/MPStartUnits.cs
similarity index 97%
rename from OpenRA.Mods.RA/MPStartUnits.cs
rename to OpenRA.Mods.Common/World/MPStartUnits.cs
index 1bca9eb766..e370bc2738 100644
--- a/OpenRA.Mods.RA/MPStartUnits.cs
+++ b/OpenRA.Mods.Common/World/MPStartUnits.cs
@@ -10,7 +10,7 @@
 
 using OpenRA.Traits;
 
-namespace OpenRA.Mods.RA
+namespace OpenRA.Mods.Common
 {
 	[Desc("Used by SpawnMPUnits. Attach these to the world actor. You can have multiple variants by adding @suffixes.")]
 	public class MPStartUnitsInfo : TraitInfo<MPStartUnits>
diff --git a/OpenRA.Mods.RA/SpawnMapActors.cs b/OpenRA.Mods.Common/World/SpawnMapActors.cs
similarity index 97%
rename from OpenRA.Mods.RA/SpawnMapActors.cs
rename to OpenRA.Mods.Common/World/SpawnMapActors.cs
index 1108793e50..0aa4edcec8 100644
--- a/OpenRA.Mods.RA/SpawnMapActors.cs
+++ b/OpenRA.Mods.Common/World/SpawnMapActors.cs
@@ -13,7 +13,7 @@ using System.Linq;
 using OpenRA.Graphics;
 using OpenRA.Traits;
 
-namespace OpenRA.Mods.RA
+namespace OpenRA.Mods.Common
 {
 	public class SpawnMapActorsInfo : TraitInfo<SpawnMapActors> { }
 
diff --git a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
index 3c37b073ca..d55a0331c7 100644
--- a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
+++ b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
@@ -203,7 +203,6 @@
     <Compile Include="Crates\LevelUpCrateAction.cs" />
     <Compile Include="Crates\RevealMapCrateAction.cs" />
     <Compile Include="Crates\SupportPowerCrateAction.cs" />
-    <Compile Include="CreateMPPlayers.cs" />
     <Compile Include="Crushable.cs" />
     <Compile Include="DemoTruck.cs" />
     <Compile Include="DetectCloaked.cs" />
@@ -234,7 +233,6 @@
     <Compile Include="Lint\CheckTraitPrerequisites.cs" />
     <Compile Include="Lint\LintBuildablePrerequisites.cs" />
     <Compile Include="MadTank.cs" />
-    <Compile Include="MPStartLocations.cs" />
     <Compile Include="Mine.cs" />
     <Compile Include="Minelayer.cs" />
     <Compile Include="Modifiers\FrozenUnderFog.cs" />
@@ -318,7 +316,6 @@
     <Compile Include="ShroudPalette.cs" />
     <Compile Include="SmokeTrailWhenDamaged.cs" />
     <Compile Include="SpawnMPUnits.cs" />
-    <Compile Include="SpawnMapActors.cs" />
     <Compile Include="Disguise.cs" />
     <Compile Include="StoresResources.cs" />
     <Compile Include="StrategicVictoryConditions.cs" />
@@ -401,7 +398,6 @@
     <Compile Include="Render\WithHarvestAnimation.cs" />
     <Compile Include="Widgets\Logic\SimpleTooltipLogic.cs" />
     <Compile Include="World\DomainIndex.cs" />
-    <Compile Include="MPStartUnits.cs" />
     <Compile Include="Widgets\Logic\WorldTooltipLogic.cs" />
     <Compile Include="Buildings\Bib.cs" />
     <Compile Include="Render\WithIdleOverlay.cs" />