You can add the following strings into [CS] section of Iron_3D.ini file
 from game directory:

        String                  Effect
 -------------------------------------------------------------------------------
 INVULNERABILITY=1              Hero invulnerability (no effect for bot's!)
 FULL_RESEARCH_TREE=1           Allow to use any bot's components without research
 WINDOW_MODE=1                  Runs game into window

 Also you can change 'ImmortalHero = 0' to 'ImmortalHero = 1' in the
 Behavior.ini file (located in the game directory too) to make Hero's ammo
 unlimited (weapon still heat normally. no effect for bot's!).

 By -= CyberMan =-, cyberman@ag.ru