Enable ragdoll on a character with weapon

FPSCharacter.cpp

void AFPSCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	if (Health <= 0 && Controller != nullptr)
	{
		// Shouldn't be in control after we die.
		DetachFromControllerPendingDestroy();

		// Capsule collisions off
		GetCapsuleComponent()->SetCollisionEnabled(ECollisionEnabled::NoCollision);
		GetCapsuleComponent()->SetCollisionResponseToAllChannels(ECR_Ignore);

		// Mesh collisions on
		GetMesh()->SetCollisionProfileName(FName(TEXT("Ragdoll")));
		SetActorEnableCollision(true);

		// Enable ragdoll physics
		GetMesh()->SetAllBodiesSimulatePhysics(true);
		GetMesh()->SetSimulatePhysics(true);
		GetMesh()->WakeAllRigidBodies();
		GetMesh()->bBlendPhysics = true;

		// Give it a push
		GetMesh()->AddImpulseToAllBodiesBelow(-GetActorForwardVector() * 500, TEXT("root"));

		// Destroy after X seconds
		SetLifeSpan(5);

		// Weapon Ragdoll
		if (RifleInstance && RifleInstance->Mesh)
		{
			RifleInstance->Mesh->SetCollisionProfileName(FName(TEXT("Ragdoll")));
			RifleInstance->Mesh->SetAllBodiesSimulatePhysics(true);
			RifleInstance->Mesh->SetSimulatePhysics(true);
			RifleInstance->Mesh->WakeAllRigidBodies();
			RifleInstance->Mesh->bBlendPhysics = true;

			// Let it fly loose
			RifleInstance->Mesh->DetachFromParent(true);

			// Destroy after X seconds
			RifleInstance->SetLifeSpan(5);
		}
	}
}