MORE CODES
I got a few cheats I'll like to give out.Type these into the password option. 
davedither-more powerful weapons 
mountandew-endless fuel
Submitted By: Thomas Tempinski

LAST LEVEL TIPS

I guess most of you have problems with soviet strike because i only see tips for 
extras in earlier levels. so this tip is for the last level. there are 3 special
soviet-anti-tank-cannons hidden for your apache. each has 500 rounds and its 
hitpoints is 50 per shot. = 2 hydras so you can waste a big tank like zsu in short time.
the first cannon is located in the lower right corner of the map. it is a dump area 
and the cannon is under a hill of dump or something like that. just shoot!!!!! and find
it. the second is in a house near the big bmp belt around the heart of the city.the 
third is in a castle-like big house by the airport.(sidewinders too!!) just
remember:when you get the cannon your hydras, hellfires and sidewinders will 
still be at work but your chain gun will be replaced by the powerful gun!!if you die
you'll loose the cannon. - Patrick Remo Perucchi

Level Codes:

Level Two: grandtheft 

Level Three: grozney 

Level Four: chernobyl 

Level Five: civilwar

Code submitted by: Greg Hampshire

Unlimited Lives:

Enter ELVISLIVES into the password screen and you will get unlimited lives.

Code submitted by: Klaatu1977

Extra Life and Missiles

If you check the bottom right of the map, you will come across SANTA. Shoot the sleigh 
without killing the reindeer or Santa and you will be awarded
an extra life. Ho, Ho, Ho.

Rescue your co-pilot from the prison camp and an outside toilet will appear near 
the base. Land on the pad near the toilet and let him go and do his
business. I don't know what he has been eating, but once he leaves, 
blow it up and receive a box of sidewinders

Head to South of the western frozen lake and blow up the barracks. 
A nude man will appear, winch him up and he will tell you where to find an extra
life.

Floating on the ice at the peak of the snowy mountains (look for the melting snow on the map) 
you will find the ever powerful wingtip missiles.

Unlimited Armor:

At Password Type "IAMWOMAN" - Master Yoda

More cheats

THEBIGBOYS:Gives you infinite ammo,infinate fuel,infinite life, and doubles the 
strenght of your gunpower. GHANDI:Enemies and civilians follow you around.
ANGRYLOCAL:The civilians are invincible and they try to kill you.

Supplied by Andrew Teixeira

Enter MIDNIGHOIL as a password to gain Infinate Ammo, Fuel and Armour 

Submitted By: Crackinmac