gistfile1.cpp

USerializablePacket* UServerProxyBlueprintInterface::CreatePacket()
{
	return NewObject<USerializablePacket>();
}

gistfile2.cpp

	UFUNCTION(BlueprintCallable, Category = "ServerProxyBlueprintInterface")
		static class USerializablePacket* CreatePacket();

gistfile3.cpp

//  Copyright (c) 2014 EpicGames. All rights reserved.

#include "SerializablePacket.generated.h"

UCLASS(Blueprintable)
class USerializablePacket : public UObject
{
	GENERATED_UCLASS_BODY()

	//UPROPERTY(VisibleDefaultsOnly, Category=Projectile)
	//UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Projectile)
	//UFUNCTION(BlueprintImplementableEvent, Category=Projectile)
};

gistfile4.txt

//  Copyright (c) 2014 EpicGames. All rights reserved.

#include "ServerProxyPrivatePCH.h"

USerializablePacket::USerializablePacket(const class FPostConstructInitializeProperties& PCIP)
: Super(PCIP)
{

}