Heavily Fortified in less than 2 minutes - Rainbow Six Siege Situations

I've only completed 2 of the 3 star requirements in order to show that this situation is not very hard at all. In order to obtain the 'disable 1 bomber device', a trick is to know exactly where they roam(they tend to walk in circles) using your drones. Pin point them via holding X(on PC), hide behind a corner far enough away from them and throw an EMP grenade. Note that you will not get a notification when the bomber becomes disabled.