1, if you've slain the required mobs, check your story inventory for key
2, you have to line em up with the boxes near each by rotating
3, doors will open as you progress through getting each key , there are 3
go to zone 1, go north then there is a hole in the ground, east. pest control
you don't need dynamite that early. and it's unlocked later on in the game.in the desert.
you're probably needed to do something else.
Can someone explain mantis storyline? i can't seem to turn up that meter in the advisor interaction, i have the clothes.