Ambush!

An ambush is a trap that is hidden from the enemy which then trigers when they get too close and deploys infantry. What infantery is deployed depends on what trigers the trap if it is an air vehicle it will deploy rocket troopers, if it is a ground vehicle it will deploy hijackers and if it is infantry it will deply grunts. The ambush should be placed in good locations so as to get the optimal effectiveness of the trap. The ambush trap only deploys once a battle and dose not have a rearm cost or the ability to boost to redeploy multiple times a battle.