Use the fast travel and move to the garrison #1. Head towards the objective marker (use the car to speed up the travel).
Enter the facility
Kill enemies along your way and enter the complex. After opening the door leading deeper inside, watch out because you'll come across the first guard right in the next corridor. Fortunately he can't see you. Use the shop cabinet if needed and take down the enemy.
Find and destroy the prototypes
Two more soldiers are patrolling the bridge ahead. You can lure one of them with a dice and kill another with a bow. Watch out for the enemy on the bridge below - distract him or kill him.
Go straight ahead. After a while you'll get to kind of corridor fork - go to its left part, nearby a dragon visible on the minimap. There is your current target visible in a distance - one of prototypes to be destroyed. And you can also see an alarm switch on the wall. Use it of course.
Approach the braincage prototype and destroy it. Turn right, heading to the large room, accessible by getting down the stairs. Watch out for the heavy soldier in the corner - kill him before he can inflict mass damage to you.
Go to the lower room and locate the second prototype (if you didn't alarm enemies, the room will be empty). Destroy the prototype. A passage to the next part of the complex is open now, so head towards your current objective.
After a while you'll get to another bridge patrolled by one soldier. If you haven't killed him before, do it now. Go to the door visible on the other side of the screen.
Rooms in this case are almost identical than previous one, but these are much better guarded. The area is patrolled by more soldiers with heavy gunners among them (one is elite). You can try to fight them frontally or eliminate one by one, waiting for the opportunity to disable the alarm.
After killing enemies, head to the third prototype and destroy it.
Get to the lower room and locate the fourth, last prototype. Destroy it.
Find a way to open the silo
Move further inside the complex. Follow the objective marker and after a while you'll get to the button which opens the silo.
Jump down to the sublevel
Wait for the perfect moment and jump down on enemies occupying the bridge below, killing them automatically. After that jump down to the silo's bottom.
Get a flamethrower
Get one of flamethrowers present in the room. Replenish ammo in the shop cabinet if needed.
Find a way to open blast doors
Head to the marked door and open it with a nearby switch.
Use the flamer to fry up dragon eggs
After opening the door you'll be attacked by enemy soldiers and robo dog. Watch out for sniper and heavy machine gunner. After clearing the corridor move forwards.
After a while you'll reach the place where dragons have laid their eggs. Use the flamethrower to destroy them.
Destroy the eggs
Locate the entrance to the central room and run inside. Your objective is to destroy all dragon eggs, placed in three spots. Dragons are immune to fire so do not bother to fight them with a flamethrower. Notice, that there are several exits from the central room, located in front of egg chambers. So play a bit with dragons and run around. Approach one of nests and destroy as many eggs as you can. When you see on the minimap that dragons are moving towards you, retreat to the central room, refuel the flamethrower if needed and run towards another nest
Get to the elevator fast
After destroying all eggs you have to get to the elevator quickly, because the entire complex will be soon blown up. Follow the objective marker until you reach a switch calling the elevator. Push it.
Survive until the elevator arrives
Before the elevator gets down you'll have to face the female dragon, mother of eggs you just destroyed. Killing a dragon is rewarded with massive amount of cyberpoints but if you do not have heavy weapons to do this, you can solve this situation in other way. Shoot the braincage off the dragon and she will become for distraction with cyberhearts.
Mount the turret and defend yourself
After few moments an elevator will come, holding a car with mounted gun. Use this opportunity to get rid of all enemies while riding up the elevator.
Man the wheel and escape the facility
Now you have about 33 seconds to run away from the complex. Try not to crash with obstacles and you should manage to get outside.