Tested on my 412.1+5.2 with partial success.
Issue discovered:
1) This mod need early B-25's to load because the cockpit refere to the B25D5 one;
2) You need to disable plane markings from arming screen otherwise you'll get immediate CTD
java.lang.NoSuchMethodError
at com.maddox.il2.objects.air.PaintSchemeBMPar03B25.prepareNum(PaintSchemeBMPar03B25.java:266)
at com.maddox.il2.objects.air.PaintScheme.prepareNum(PaintScheme.java:92)
at com.maddox.il2.objects.air.PaintScheme.prepare(PaintScheme.java:80)
at com.maddox.il2.gui.GUIAirArming.prepareMesh(GUIAirArming.java:1242)
at com.maddox.il2.gui.GUIAirArming._enter(GUIAirArming.java:747)
at com.maddox.il2.game.GameState.enterPush(GameState.java:92)
at com.maddox.il2.game.GameStateStack.push(GameStateStack.java:55)
at com.maddox.il2.game.GameStateStack.push(GameStateStack.java:44)
at com.maddox.il2.gui.GUIQuick$WButtonArming.notify(GUIQuick.java:654)
at com.maddox.gwindow.GWindowDialogControl._notify(GWindowDialogControl.java:51)
at com.maddox.il2.gui.GUIButton._notify(GUIButton.java:18)
at com.maddox.gwindow.GWindowDialogControl.mouseClick(GWindowDialogControl.java:86)
at com.maddox.il2.gui.GUIButton.mouseClick(GUIButton.java:22)
at com.maddox.gwindow.GWindow._mouseButton(GWindow.java:556)
at com.maddox.gwindow.GWindowRoot.doMouseButton(GWindowRoot.java:251)
at com.maddox.gwindow.GWindowManager.doMouseButton(GWindowManager.java:69)
at com.maddox.il2.engine.GUIWindowManager.msgMouseButton(GUIWindowManager.java:126)
at com.maddox.rts.MsgMouse.invokeListener(MsgMouse.java:98)
at com.maddox.rts.Message._send(Message.java:1217)
at com.maddox.rts.Message.sendToObject(Message.java:1191)
at com.maddox.rts.Message.sendToArray(Message.java:1147)
at com.maddox.rts.Message.sendTo(Message.java:1128)
at com.maddox.rts.Message.trySend(Message.java:1115)
at com.maddox.rts.Time.loopMessages(Time.java:180)
at com.maddox.rts.RTSConf.loopMsgs(RTSConf.java:101)
at com.maddox.il2.game.MainWin3D.loopApp(MainWin3D.java:131)
at com.maddox.il2.game.Main.exec(Main.java:448)
at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
3) In this condition you have only bombs or rockets because nose or wings guns don't fire;
4) In flight it give a lot of stutters due:
java.lang.ArrayIndexOutOfBoundsException
at com.maddox.il2.objects.air.A_26B.update(A_26B.java:87)
at com.maddox.il2.fm.FlightModelMain.update(FlightModelMain.java:795)
at com.maddox.il2.fm.FlightModel.FMupdate(FlightModel.java:834)
at com.maddox.il2.fm.RealFlightModel.update(RealFlightModel.java:583)
at com.maddox.il2.fm.FlightModelMain.tick(FlightModelMain.java:805)
at com.maddox.il2.engine.Interpolators.tick(Interpolators.java:222)
at com.maddox.il2.engine.Actor.interpolateTick(Actor.java:434)
at com.maddox.il2.engine.InterpolateAdapter.msgTimeOut(InterpolateAdapter.java:174)
at com.maddox.rts.MsgTimeOut.invokeListener(MsgTimeOut.java:73)
at com.maddox.rts.Message._send(Message.java:1217)
at com.maddox.rts.Message.sendToObject(Message.java:1191)
at com.maddox.rts.Message.sendTo(Message.java:1134)
at com.maddox.rts.Message.trySend(Message.java:1115)
at com.maddox.rts.Time.loopMessages(Time.java:252)
at com.maddox.rts.RTSConf.loopMsgs(RTSConf.java:101)
at com.maddox.il2.game.MainWin3D.loopApp(MainWin3D.java:131)
at com.maddox.il2.game.Main.exec(Main.java:448)
at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
Hope this could help in it's update for 412 , those planes are really important for late WWII , Korea and eraly Vietnam scenarios!!!
All the very best!
walter