You can add the following strings into [CS] section of Iron_3D.ini
 file from game directory: 
 
 Code Result 
 INVULNERABILITY=1 Hero Invulnerability 
 FULL_RESEARCH_TREE=1 Use Any Bot's Components Without Research 
 WINDOW_MODE=1 Run Game in a Window 
 
 
 Note:
 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 bots!.)