Obviously they don't know who Death Gun is.
Again, none of those games have monsters or lasers or force fields in them. You continue making this argument, and it continues to be retarded.
This game isn't Modern Warfare, and it sure as shit isn't ARMA. It's Halo with RPG elements(which makes it Destiny I guess).
Well, I guess that's fair. It's not like anime is full of samurai-type characters cutting through bullets or anything.
Oh wait...