Syntax UE4, UE5

Example: I'm Reviewed
UE4 Marketplace - FPSTemplate

In 2021/10
I checked can build and run on UE 4.27.1

In 2021/04
I checked can build and run on UE 4.25.4

It was need fixed one widget bp.

I'm getting a Good time and Good experience by this projects
Thanks for develop this project!!

---
About UE5 compatibility
need fix below  compile to launch ue5 editor.

[In Bullet]
UE4.26 HitResult.Actor
UE5, UE4.27 HitResult.GetActor()

[In Soldier]
UE4.26 GetMesh()->SkeletalMesh->RefSkeleton
UE5, UE4.27 GetMesh()->SkeletalMesh->GetRefSkeleton()

[StaticFunctionLibrary]
UE4.26 ClassName.Replace(TEXT("_"), TEXT(" "));
UE5, UE4.27 FString tmpString = ClassName.Replace(TEXT("_"), TEXT(""));

[In BaseSingleton]
UE4.26 TAssetPtr
UE5, UE4.27 TSoftObjectPtr

This case, will fail to build in UE5 environment
UE5.EA: HitResult.GetActor()
UE4.27: HitResult.Actor

FHitResult

void AThrowableProjectile::OnProjectileBounce(const FHitResult& HitResult, const FVector& ImpactVelocity) {
    if (HitResult.GetActor()) {
        FPointDamageEvent DamageEvent;
        DamageEvent.HitInfo = HitResult;
        DamageEvent.Damage = 20.f;
        DamageEvent.ShotDirection = ImpactVelocity;
        HitResult.Actor->TakeDamage(5.f, DamageEvent, GetInstigatorController(), this);
    }
}

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