You are deadly assassin and you are in a hurry. Don't even think about stop, avoid obstacles by jumping over or sliding under them and reach the finish.
This area is full of things that can instantly kill you. Run forward and avoid obstacles that will sometimes appear in front of you. Slide under some of them or use a double jump to jump over the walls. Pick up guns and pistols, bandage yourself and continue your adventure. Upgrade your arsenal and call for air strike if needed.