Warhammer 40k - Fire Warrior

Hints:
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Submitted by: rickHH

Hard mode:
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Successfully complete the game under the normal difficulty setting to
unlock the hard difficulty setting.

Level select:
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Successfully complete the game to unlock all levels under the same
difficulty setting initially used.

Unlimited shield:
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Successfully complete each level (including the training level) under
the hard difficulty setting.

Unlimited ammunition:
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Successfully complete the game under the normal difficulty setting
with an "A" rank on each level (including the training level).

Unlimited grenades:
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Successfully complete the game under the hard difficulty setting with
at least a "B" rank on each level (including the training level).

Unlimited health:
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Successfully complete the game under the hard difficulty setting with
at least a "C" rank on each level (including the training level).

Selectable left-weapon:
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Successfully complete the game under the hard difficulty setting with
an "A" rank on each level (including the training level).