After you’ve been through the caves and made your way through to the end of the military research point. Once you’ve climbed over the last gate you’ll have the behemoth fighting machine appear behind you.
The first section will see you dodging the ray beam and walkers to turn on 4 laptops and open the gate at the back. Easily enough done as each laptop is “roughly” in a corner. Just sprint around and that part is done.
The frustrating section however is to follow, resembling that of crash bandicoot you will have to run away facing towards the screen and a static camera. If you get hit by the beam it’s pretty much a one hit kill with a fair bit of trial and error.
Run from rock to rock mostly from the left side to ride side. When you get behind a rock the machine will prepare to attack and the best time to run is just as it fires. That way the beam shouldn’t follow you and you can sprint to the next rock/barrier.
Unfortunately it’s a lot of timing needed with annoying trial and error needing not far off a perfect run even on easy difficulty.