It believes Iranian troops will have a far better chance of combat survival in a vast regional battle ground which they get to define.

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Combat and quest completions provide skill points, which can be automatically assigned to preset builds (combat, survival and so on) or allocated manually.

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It's the same for the other members of the Combat Search And Rescue team, from the pilots and aircrews, to the Combat Rescue Officers and Survival Evasion Resistance and Escape (SERE) specialists.

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His book moves on to the Vietnam War, describing his Air Force service, his combat missions and even his survival after being shot down.

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For Navy SEALs in combat, these things are essential for survival.

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The Pentagon says the current survival rate for its personnel wounded in combat is above 90% - the highest in recorded history - and argues this proves the training is effective.

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