The fatal flaw with your theory that this comically deranged Dorner psychopath is some kind of Jason Bourne, Rambo, Dirty Harry, and James Bond all rolled into one is that he’s never demonstrated any competency at anything he’s ever done in his entire life. He’s a former Navy officer who can’t even steal an old man’s putter boat without fouling the propeller in the docking line. This fool couldn’t even plan his next wank.
I think it’s time to consider the likely possibility that Dorner is a 290 pound frozen lump of dead meat covered in 14” of fresh snowfall right now.
My training tells me to assume the worst case scenario until it can be proved otherwise. Dorner knows police tactics and procedures, so it follows he knows exactly how they will react. You don't have to be a rocket scientist to design some simple false leads and dead ends to get the cops wasting time, manpower, and effort.
You DO realize that the police sent a protection team to protect his first victims, but he took them out and managed to kill the folks they were protecting - AND he got away.
Hardly incompetent.
Much more competent than the LAPD, who thus far managed to shoot up two pickup trucks which did not match the description of his - not even the same color.