Sleeper Ambush



Sleeper Ambush is a special ability allowing Imperial Commander to summon 5 Tankbusters from underground in a revealed zone. In order to prevent this ability from falling to enemy hand, Empire only gives it via Top Secret Protocol while having a Imperial construction yard, after the Commander successfully upgrades Advanced Rocket Pods and collect enough 24 of the Security points.

When the Commander give his order, Tankbusters will slowly "rise" from underground, make them vulnerable until being summoned sucessfully.

Trivia

 * Though there are 5 Tankbusters are summoned in battle field, only 3 are visible in the game icon.