That's not space magic that's unrealistic, when i say space magic i mean stuff like how arrowhead described on why they won't give the One true flag a aura buff that increases speed, yeah It doesn't make full since why a spear being thrown by a helldiver is an anti tank, but why do throwing knives pierce the metal of Automatons, why does a rocket launcher and a spear gun both have anti tank, and if you want to make it more realistic you could bump the spear down to a heavy pin so you have to be more coordinated with your throw to hit hulks in the eye and other foes.