Deploy your units to ambush the passing by enemies. Enemies will return fire so beware that your troops may be killed. Luckily, allied airplanes will fly by to assist you.
Your base is under attack! Get your best chopper out there immediately and demolish every enemy unit on sight. Don't forget to build towers and repair damaged towers to help accomplish your mission.
Stop the invasion before the enemy reaches our cities! Alien life forms have been detected and our army has mobilized its defensive tower forces to protect us.
