aftermath packages get loaded that way too.

OpenRa.Game/MainWindow.cs

@@ -57,9 +57,6 @@ namespace OpenRa
 
 			FileSystem.MountDefaultPackages();
 			
-			if (Game.Settings.UseAftermath)
-				FileSystem.MountAftermathPackages();
-
 			bool windowed = !Game.Settings.Fullscreen;
 			renderer = new Renderer(this, GetResolution(settings), windowed);
 

mods/aftermath/mod.yaml

@@ -2,6 +2,8 @@
 # Requires classic RA mod
 
 Packages:
+	expand2.mix
+	hires1.mix
 
 LegacyRules:
 	mods/aftermath/aftrmath.ini:	More or less original Aftermath rules file.