Invincible Tanks
This is more of a helpful hint rather than a cheat but first what you want to do is be the Stealth General(recommended) have an enemy that is and China team. Next you build you base and be sure to have replaceable parts. After that capture a workshop that heals all tanks on the feild. Next capture the enemy Chinese Command Center and eliminate him. Finally build untill you can buy an Overlord and make 2 of them have a propaganda tower to heal them and DOMINATE THE MAP!
Extra: You can also capture a USA strategy center and make it wear Hold The Line is on.(+10% armor)