Download EmuCheat 2007, 2005, 2006. You can install and open EmuCheat. There is a row of simulator icons below. Whichever simulator you use, just click on it. Then find the Heavy Mechs in the game name. There is a tank chapter and you should be able to modify it. To change the name, click the green check mark in the front box of the option that needs to be modified, and then after making the changes, click Activate Cheat Code on the upper right corner and it will be OK to unlock the code
How about Heavy Tank 3? Good name