Try the entrance

You decide to barge into the place from the front, with the thought that this might be the weakest part of the complex. But the moment you arrive two turrets pop out from the sand, your bodies struck with numerous darts that are able to go through your suit's material. What were you thinking? For a moment, you are unsure what the darts would do.

ZAP!

Then they shock you all at once, and you collapse on the floor unconscious.