"Those of you who volunteered to be injected with preying mantis DNA, I've got some good news and some bad news. Bad news is we're postponing those tests indefinitely. Good news is we've got a much better test for you: fighting an army of mantis men. Pick up a rifle and follow the yellow line. You'll know when the test starts."
Actually not that bad, AK47s for arms mostly negates the praying mantis' most dangerous feature which is it's grip. Also, gorillas tend to use their hands while walking, so the AKs would get their barrels full of dirt.
Or maybe this is more mantis body and gorilla members? Which would be just a cricket with a funny butt.