Cheat mode:
Note: This procedure involves editing a game file; create a backup copy of the
file before proceeding. Use a text editor to edit the "diff_easy.cfg",
"diff_normal.cfg", or "diff_hard.cfg" file in the "\crysis\game\config\"
directory to change game play under the Easy, Normal, or Hard difficulty
settings. Insert the following lines to get God mode and unlimited ammunition.
This may also be done in the demo version of the game.

God Mode - g_godMode = 1
No Target - ai_IgnorePlayer = 1
No Weapon Limit - i_noweaponlimit = 1
Unlimited Ammo - i_unlimitedammo = 1


You can also modify your suit stats. For example:

-- Player Health/Energy/Suit
// No energy loss
g_suitCloakEnergyDrainAdjuster = 0

// No energy cost
g_suitRecoilEnergyCost = 0

// Run faster
g_suitSpeedMult = 2.85

// More armor points
g_suitArmorHealthValue = 900.0

// Instant health regen
g_playerSuitArmorModeHealthRegenTime = 0

// Instant health regen while moving
g_playerSuitArmorModeHealthRegenTimeMoving = 0

// Set health regen time to 0
g_playerSuitHealthRegenTime = 0

// Set regen time while walking to 0
g_playerSuitHealthRegenTimeMoving = 0

// No waiting until regen starts
g_playerSuitHealthRegenDelay = 0

// Instant energy
g_playerSuitEnergyRechargeTimeArmor = 0

//Instant energy while moving
g_playerSuitEnergyRechargeTimeArmorMoving = 0

// Set energy regen time to 0
g_playerSuitEnergyRechargeTime = 0

// Do not wait until energy regen starts
g_playerSuitEnergyRechargeDelay = 0

// Extra health
g_playerHealthValue = 900.0

// Set difficulty, 1 is easy, 4 is most difficult
g_difficultyLevel = 1

After making all of your edits, save the file, load up a new game and see what
you've edited!

неа

Можно было и на дату последнего сообщения посмотреть, думаю что с этой проблемой уже давно разобрались.