Extra armor
When confronting guards in almost any stage of the game headshots are always best They kill in one shot and leave the body armor undamaged If you need to use multiple bullets the body armor collected after searching the body will be damaged and less useful
Final Boss Fight
When the final boss walks towards Anna light up his back either with the AK47 or MP5 each one has the rate of fire you will need to get his attention Then as he rushes you run at a angle away from him then go perpendicular from the boss path at the last second Repeat at least four times while Anna sets those charges After a cut scene you must switch to the 45 pistol to finish him You use the same dodging strategy as before but this time you have Tom run towards the boss left side that will be Toms right side and the boss will usually miss the claw attack and instead pick up your character to crush him Strangely this is what you need to do Only up close can you press the ACTION key RED on XBOX repeatedly to fill the action gauge to full and then press FIRE R on XBOX to shoot the boss at point blank range Do this 3 times and youre done
Health pack
The health pack default is Left never runs out This is basically the same as having infinite health If you are ever injured no matter how badly use the health pack The only catch is that you need to be alone as it takes some time to actually heal After a firefight find a secluded room or corner and press Left
Unlock Elite Difficulty
Beat the game on any difficulty then enter the options menu and save your profile Elite difficulty should be unlocked
UnlockableHow to unlockElite DifficultyBeat the game then save your profile