spaar's mod loader

I've seen videos on Youtube, of someone flying a plane and shooting it down with another creation. Is it possible to do this without mods? If not, which mods would be preferred to do so.

Spaar said, that he is now in an university I think that's the reason why the mod loader isn't getting updated, we need a new mod loader or somebody who updates the old one

I think The problem is the file Assembly-UnityScript of the mod loader cause i replaced it with the original one and it works normaly.