It`s no longer viable without engineering, so you might better look for a buddy whilde learning the ropes. and that is mostly about the super lemming AI going all out for players and ignoring any other threat.
@OP - another warning: every now and then a hostile will head off away from the CZ. It will seem like a great opportunity to follow him and pick him off. But when he crosses the boundary of the CZ (and there is nothing to tell you when this has happened) he will cease to be a legitimate target and you will be up on a murder rap if you kill him.