RAMBO 5 Plot Takes Another Unexpected Beastly Twist

First we thought he was going to fight evil Mexicans who kidnapped some girl, and then we thought he was going to fight invincible soldiers, and now he’s actually going to fight a creature? The plot for RAMBO 5 can’t seem to make up its mind. AICN again has got its hands  on what seems to be the official synopsis for the movie

Rambo has a partner, huh?! Right off the bat that’s an awful idea. Rambo’s supposed to be one man against a whole town of bad guys, that’s what he’s famous for, being a one man army. What the hell is he doing running around with a 22 year old jerkoff who’s probably going to be the dumb comic relief?!
I could tolerate Rambo fighting Universal Soldiers but I draw the line at hunting down some lab animal that can’t die.
John McLane is known for being at the wrong place at the wrong time with a bunch of terrorists, Terminator goes back in time to save John Connor, Statham can kick 50 guys around and win, you don’t mess with the order of things, man! You just don’t suddenly change a group of war rebels or jungle soldiers with one genetically engineered beast! What is this, Rambo’s version of Predator?!
Slashfilm learned that RAMBO 5 might be based on HUNTER, a book by author James Byron Huggins about the world’s greatest tracker and a giant black wolf ghost. Sly bought screen rights some time ago.

Here’s the official synopsis of the book..

“One of Hollywood’s hottest action-film writers, James Byron Huggins is a master at keeping the action rolling and the pages turning. Here, the author of Cain (“may be the thriller of the year” — BookPage), unleashes a lightning-quick tale that pits a man born out of his time against the future’s deadliest creation.
Nathaniel Hunter could track anyone — or anything — on earth. Now the military desperately needs him for a mission that his ultrasensitive instincts tell him he should refuse. A beast is loose somewhere north of the Arctic Circle. It has already decimated a secret research facility and annihilated a squad of elite military guards. And the raging creature is headed south toward civilization, ready to wreak bloody devastation.
It’s a job that Hunter can’t turn down, but he soon discovers that his prey is terror incarnate, a half-human abomination created by a renegade agency through a series of outlawed genetic experiments. It has man’s cunning, a predator’s savageness, and a prehistoric power that has transcended the ages. And even if Hunter survives its unrelenting hunger for human blood, he’ll still have to confront the grim reality that it may have grown immortal.”