When you are in a stealth mission, stay out of areas with lights and the enemy cannot see you. Note: If you fire a shot they will be able to spot you.

While you are shooting your enemy, move from side to side. This will help you avoid enemy bullets.

If you cannot see the enemy because of the trees, use your crosshairs. If it turns red it means that you are aiming at an enemy. If it turns green then you are aiming at your allies.

In the battlefield you will find wagons, stone wall and baskets. Use them as cover while you are reloading or getting suppressed.

When your health is running low, crouch and use wagons and nest to cover until you see a medi-kit. Note: This only works in some missions.

When you see an ally fighting hand-to-hand with the enemy, help him. Sometimes they will get killed and you could end up alone.

When you finish securing an area, reload your weapon. By doing this you will have a fully loaded weapon in case you are spotted by an enemy.

Reloading a weapon can be a time-consuming process. It pays to plan your reloading time and engage in hand-to-hand combat when facing a greater enemy force. Keep mobile and be aware of your perimeter when engaging.

One of the most important concepts in warfare, the high ground offers you a better vantage point and firing position.