We have 1 cheats and tips on Nintendo DS. If you have any cheats or tips for Operation Vietnam please send them in here. You can also ask your question on our Operation Vietnam Questions & Answers page.
When you beat Campaign mode the 'Cheat' menu will become unlocked. Note: enabling the cheats will disable high scores.
Fast Reload:
Beat the Campaign mode.
Disable Auto-Aim:
Beat the Campaign mode.
Double Enemy Health:
Beat the Campaign mode.
Infinite Grenades:
Beat the Campaign mode.
Hard Campaign Mode:
Beat the Campaign mode.