1. When you are low in health make sure to reload whenever you
have a chance.(Auto reload takes more time than manual reload.)
2. When you have turns to the right or left, don't go forward and turn
(The enemies have chance to shoot while you are turning).So turn
to left or right early and face the wall.Now walk side ways untill
you reach the turn.
3. Don't stand near red coloured barrels, because your enemies will
fire at the barrels and they will explore causing heavy damage
to the health.When group of enemies stand near the red barrels,
just shoot to the barrels.
4. When your health is low, use your specs to see inside the room
before you enter.
5. When you fight with ninjas, make sure change your standing place
rapidly.Don't stand on one place when you deal with ninjas.If you
do that, it will efect your health badly.